Read. The order of the points does not matter for the formula as long as the points chosen are consistent. distance between two points on the surface of a sphere). As always, the code used in the examples is. Normal value is 285 mmol/kg. Vincenty, Survey Review 22, April 1975. Margin of Error: Population Proportion: Use 50% if not sure. bas module. of years of service x 15/26. import math # Length of radius at equator of the ellipsoid a = 6378137. Calculator: Milliamp Hours to Watt Hours Calculator. We can check the distance of each geometry of GeoSeries to a single geometry: >>> point = Point(-1, 0) >>> s. 3. In other words driving a distance from Point A to Point B always Calculate the distance between two points on Earth The fancy schmancy names for these functions are the “direct geodetic problem” and the “the inverse geodetic problem”. Vincenty's formulae. Here are two standard methods: Vincenty's formula (applied above) 8139. The tutorial consists of the following content: 1) Creating Example Data. Updated May 29, 2022. For the calculation of the course angle the following formulas are used: 1. The arc length of the sector (c) is equivalent to the circumference of the cone base. D. Step 1: Enter the values of any two angles and any one side of a triangle below for which you want to find the length of the remaining two sides. " Learn more. x(t) = x 0 × (1 + r) t. The user may select from a variety of reference ellipsoids, including GRS80 (NAD 83) / WGS84 and Clarke 1866 (NAD 27), or may define their own reference ellipsoid in. 5 N is required to move the plate at a velocity of 3. 02837349, and matches GeoPy and PostGIS's values. Vincenty's formulae are two related iterative methods used in geodesy to calculate the distance between two points on the surface of a spheroid, developed by Thaddeus Vincenty (1975a). For example, if your mortgage is $150,000, your loan term is 30 years, and your interest rate is 3. But if you want greater accuracy without having implement the Vincenty formula from scratch, you can. The "Draw map" button will show you the two points on a map and draw the great circle route between them. As you can tell, the. Online version: Great Circle Calculator - 'As the Cocky Flies' Great Circle and Approximate Ellipsoidal [XLS 18. Haversine and Vincenty happen to be algorithms for computing such distances; however both result in excessive errors in some limits. Return the distance. 01 g/mol + 12 × 1. 2) Example 1: Calculate Geospatial Distance Using geosphere Package. 04 m in the web map. 00/5 (21 votes) 9 Jan 2008 CPOL 5 min read 92K 696 79 11. js'; const p1 = new LatLon(52. Find the Inversion Count in the array. [1] He devised Vincenty's formulae, a geodesic calculation technique published in 1975 which is. 2) Project the co-ordinates (e. I have been using the inverse solution of Vincenty's formulae (which I've implemented in Python) to calculate distance and azimuth between sets of. This calculator computes the minimum number of necessary samples to meet the desired statistical constraints. To associate your repository with the vincenty topic, visit your repo's landing page and select "manage topics. The haversine formula [no capital, haversine = "halve versed sine" is not the name of a person] calculates the distance between longitude/latitude points assuming a spherical. The calculator utilizes the Haversine formula, which provides an accurate estimation of the great circle distance between two points on a sphere. If both sides of an inequality are multiplied or divided by the same positive quantity, the inequality remains true. 50882128404997)) ration = np. d=2r d = 2r. 00/5 (21 votes) 9 Jan 2008 CPOL 5 min read 92. Given two points with these Latitude and Longitude coordinates: Point. D. Calculate the distance between the two buildings using the latLngDistanceMeters() function. turf. (I) and (2) of [7] (quoted from [1]) to compute meridional arcs corresponding to the same lines. I got two columns with latitude and longitude values. Great Circle Central Angle Equation, originally by eng. r: Growth rate when we have r>0 or growth or decay rate when r<0, it is represented in the %. Did you know how google maps measures distance from one location to another? Watch this short video on ho. Input them in the haversine distance formula: d = 2R × sin⁻¹ (√ [sin² ( (θ₂ - θ₁)/2) + cosθ₁ × cosθ₂ ×. where. A. The Haversine formula calculates a great-circle distance which assumes a perfect sphere. 012% of the total amount of potassium in a sample (this quantity is called abundance ). The haversine formula determines the great-circle distance between two points on a sphere given their longitudes and latitudes. vincentys-formula. Type depends on input; Quantity in angular units, or float in radians. 2) Find the P (unknown variable) from the above linear equation which is the Equilibrium Price. Step 2: Compute the value of the function at x0, which is f (x0) Step 3: Compute the derivative of f (x) at point x0, so you need f' (x0) Step 4: Directly apply the formula of the tangent line. 126 nautical miles; Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet. Step 3: Finally, the chemical formula will. I need to calculate the distance between the points in every row. the direct formula to compute the latitudes of forepoints in azimuths of 0', and eqn. See the ‘ Direct ’ formula to calculate the destination point given the start point, bearing and distance. Tags geodesy, haversine distance, great circle distance, vincenty's formula . The following are 17 code examples of geopy. We started with the least accurate equirectangular approximation. This library implements Vincenty’s solution to the inverse geodetic problem. For the benefit of the terminally obsessive (as well as the genuinely needy, of course), Thaddeus Vincenty devised formulæ for calculating geodesic distances between a pair. Below is the javascript:A geodesic on an oblate ellipsoid. 72°W; To calculate the azimuth angle between each coordinate pair, you can use GeographicLib, for example the online tool. 945 kilometers; 3306. To calculate the distance between two points there are two popular algorithm Haversine and Geodesic distance is used:. A. com. Development Status. Vincenty formula. 1. Given two points with these Latitude and Longitude coordinates: Point 1: Latitude: 37° 57' 3. geodesicLength@meters! in ArcGIS. 21057333441532497. The diameter equals the length of two radiuses. This uses the ‘haversine’ formula to calculate the great-circle distance between two points – that is, the shortest distance over the earth’s surface – giving an ‘as-the-crow-flies’ distance between the points (ignoring any hills they fly over, of course!). 5%, then your. There are several ways to calculate the distance from Seattle to Singapore. Geocalc is a simple java library aimed at doing arithmetics with Earth coordinates. This is a rearrangement of the density equation. a = 0. Take the square root of the result. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Our binomial distribution calculator uses the formula above to calculate the cumulative probability of events less than or equal to x, less than x, greater than or equal to x and greater than x. Longitude and latitude of the two points. 2) Example: Calculate Vincenty Ellipsoid Great Circle Distance Using distVincentyEllipsoid () Function of geosphere Package. Step 3: Now calculate the multiplication by 4. The study of geodesics on an ellipsoid arose in connection with geodesy specifically with the solution of triangulation networks. It is designed to be simple to embed in your existing applications and easy to use. 1. The function first converts the latitude and longitude to radians and then calculates the difference between them. As a result, Wolfram|Alpha also has separate algorithms to show algebraic operations step by step using classic techniques that are easy for humans to recognize and follow. Recently the work I have been doing requires a higher degree of accuracy than which the haversine method I was using could provide. java distance earth geodesy haversine meters azimuth haversine-formula vincenty bearing midpoint vincenty-formula geocalc standpoint Updated Oct 24, 2020; Java; maurycyp. Mike Gavaghan. The project I am working on is a Java-project, so Java-code will be great, but pseudo-code can also be given, then I can implement it myself :) import numpy as np def Haversine(lat1,lon1,lat2,lon2, **kwarg): """ This uses the ‘haversine’ formula to calculate the great-circle distance between two points – that is, the shortest distance over the earth’s surface – giving an ‘as-the-crow-flies’ distance between the points (ignoring any hills they fly over, of course!). See also. 1: What is the best way to calculate the distance between 2 points? From: Bob Chamberlain <rgc@jpl. Testing this on an online vincenty calculation is seems the projected co-ordinates are the way to go: python; scipy; spatial; kdtree; map-projections; Share. Now that we know what the radius of a circle is (marked with green), let's get familiar with the rest of the lines. Vincenty's Formula is an iterative solution for calculating the distance and direction between two points along the surface of Earth. m = mass. The assumption that allows this formula to work is that a fixed amount of fluid is needed for every kilogram per day. For those of you that are unfamiliar with the formula, it is used to calculate the direct distance between two surface points of the globe. Find sequence types, indices, sums and progressions step-by-step. I closest thing I can find is a "destination" function in distance. 0 dtype: float64. Thank you. The Vincenty stuff looks nice, but I tried for instance the distance calculation using vincenty from geopy, which gives values not accurate enough, too. If unknown, determine the cone's base radius r. The Vincenty's formulae article presents an algorithm for calculating the geodesic distance between two points on an ellipsoid. How do I calculate distance between two latitude longitude points? I need to calculate the distance between two points given by two coordinates. To calculate its watt hours, you multiple its amp hours by its voltage: 50Ah × 12V = 600Wh. A = P(1 + r/n) nt. Vincenty's Direct and Inverse Solution of Geodesics on the Ellipsoid - Excel VBA implementation. Given an array of integers. Vincenty functions can be simply added to any existing Excel workbook. To obtain good accuracy for long lines, the solution uses. ; In some sense, the radius is. py. Vincenty's (1975) formulas for the direct and inverse geodetic problems (i. (and so by extension. 3. The regions are stored in a relational database and their characteristic can be retrieved by consulting one or more attributes. given a reference point and a distance and azimuth to project. vincentys-formula. Along with values, enter the known units of measure for each and this calculator will convert among. You can interpret the name 'RLC circuit' to mean. For it, you will need the number of active coils (Na), spring mean diameter (D), shear modulus (G), and wire diameter (d). Vincenty Algorithm is used to calculate this distance. φ1, φ2 = geodetic latitude. Molar Mass = 58. For example, if one resistor is 2 Ω and the other is 4 Ω, then the calculation to find the equivalent resistance is: 1 / (1/2 + 1/4) = 1 / (3/4) = 4/3 = 1. 257223563 # Length of radius at the poles of the ellipsoid b = (1 - f) * a # Latitude points la1, la2 = 10, 60 # Longitude points lo1, lo2 = 5, 150 # For the inverse problem, we calculate U1, U2 and L. Online calculators and. 3) performs geodesic calculations for an arbitrary ellipsoid of revolution. S. example. 24. Haversine, are accurate to around 0. N = size of the sample data set. For women: BMR = 10W + 6. Where: s is the geodesic distance along the surface of the ellipsoid (in the same units as a & b); α 1 is the initial bearing, or forward azimuth; α 2 is the final bearing (in direction p 1 →p 2); Note: Vincenty observes that eqn. 4. , where - latitude and longitude of the first point. Point 2: Latitude: 37° 39' 10. Thaddeus Vincenty (born Tadeusz Szpila; 27 October 1920 – 6 March 2002) was a Polish American geodesist who worked with the U. 2. –This uses the ‘haversine’ formula to calculate the great-circle distance between two points – that. of latitude and longitude using the Vincenty formula from:Free Truth Table calculator - calculate truth tables for logical expressionsTo calculate the equivalent resistance of two resistors in parallel: Take their reciprocal values. How much difference does it make when you calculate difference on an oblate spheroid rather than a. They are based on the assumption that the figure of the Earth is an oblate spheroid, and hence are more accurate than methods that assume a. 25 × 10-3 m thick layer of castor oil. Cancel the common factor of and . Given two geographic coordinates, use Vincenty's inverse formula to calculate an ellipsoidal distance and the forward and reverse geodetic azimuths between the two points. The. How to Calculate Percentages. Vincenty's formulae are two related iterative methods used in geodesy to calculate the distance between two points on the surface of a spheroid, developed by. Here are two standard methods: Vincenty's formula (applied above) 3804. That UDF (the part that was completed) is included in the zip file. 408258E is 534105. var degrees = Math. Explore math with our beautiful, free online graphing calculator. GeographicLib provides an alternative which always converges (and is also more accurate). Well, accuracy in relation to the calculated !shape. Here are two standard methods: Vincenty's formula (applied above) 8090. Last monthly or basic salary withdrawn at the time of resignation or termination of employment. JavaScript. Its half-life is 1. The common ratio is obtained by dividing the current. 2, a data step was used to compute such distances, commonly with the Haversine formula. , Lon. The accuracy of Vincenty's formulas is about 0. The documentation on the C interface is here. Vincenty’s formula as it is used in the script: a , b = major & minor semiaxes of the ellipsoid. 04 m in the web map. This includes elimination, substitution, the quadratic formula, Cramer's rule and many more. , in relation to the geodesic ) have been verified by comparing them with a new formula developed by adapting a fourth. Where, Opening balance: The EPF balance at the beginning of the financial year (April 1) Contributions:. Step 1: Open an Excel sheet. This calculator will find the distance between two pairs of coordinates to a very high degree of precision (using the thoroughly nasty Vincenty Formula, which accounts for the flattened shape of the earth). y = sin x + a. com to describe the positions of the Sun, the Moon. ) × 15/26. Here is the complete implementation of the buildingDistance() function: def buildingDistance(bid_1, bid_2): # Check if both building IDs are valid. . With samples, we use n – 1 in the formula because using n would give us a biased estimate that consistently underestimates variability. 1) Is Vincenty Formula the better option to calculate distance between 2 points than Haversine formula when generating latitude and longitude from Android Device. turf vincenty inverse module. I have tried using Arctan2, but the MapPoint coordinates are skewed by earth curvature (I think) and therefore straight forward calculation is incorrect. . 1. Friedewald, R. 218 kilometers; 7073. (18) becomes indeterminate over equatorial lines (since cos²α → 0); in this case, set cos2σ m to 0 and the result is computed correctly. "Haversine" is a bit faster but "Vincenty" is far more accurate! Catmull-Rom algorithm is used for smoothing out the path. But simple Euclidean distance doesn’t cut it since we have to deal with a sphere,. d = 2 r. The equations for linear and volumetric expansion are very similar. To give an example, if you wish to calculate simple interest on a $5,000 loan at a 3% annual interest rate for 2 years. This angular velocity calculator uses two different angular velocity formulas depending on your input parameters. 3) Video & Further Resources. They are based on the assumption that the figure of the Earth is an oblate spheroid, and hence are more accurate than methods such as great-circle. Thomas, Paul D. the time difference between the points can be used to calculate the time delta. 1) Consider Qd (quantity demanded) equal to Qs (quantity supplied). lats, longs and azimuths are passed in decimal degrees. This calculator will find the distance between two pairs of coordinates to a very high degree of precision (using the thoroughly nasty Vincenty Formula, which accounts for the flattened shape of the earth). Atan2(endPoint. This can be calculated by using the. Don’t forget to convert back from radians to degrees. Learn how to implement. To conduct the correct three-phase power calculation to the problem given above: Identify the given parameters — active power = 5 kW, phase voltage = 400 V and line current = 8. Illustration 1: The upper hemisphere of the celestial sphere. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. It's comprised of costs and revenue: fixed_costs = (per_unit_revenue - per_unit. This uses the ‘haversine’ formula to calculate the great-circle distance between two points – that. Hence, to calculate the distance from force and work, proceed as follows: Determine the work done, W, when the force, F, is applied. The latitude is supposed to change! 90° is just your initial bearing. Haversine Formula: To calculate the distance between two points given longitude and latitude coordinates: Write down each point's coordinates in degrees-only format. So if we need to find the total surface area of a cuboid whose length is 8 cm, width is 7 cm, and height is 6 cm, using the above, we begin by substituting the values:To solve a trigonometric simplify the equation using trigonometric identities. Given a geographic coordinate, an ellipsoidal distance, and a geodetic azimuth, use Vincenty's direct formula to calculate the coordinate of a second point as well as the reverse geodetic azimuth. Earth radius; Spherical Earth; Great-circle distance; Vincenty's. If we apply the binomial probability formula, or a calculator's binomial probability distribution (PDF) function, to all possible values of X for 7 trials, we can construct a complete binomial distribution table. Vincenty's direct: Given the latitude and longitude of a point (1) and the forward geodetic azimuth (1-2) and ellipsoidal distance to a second point (2), calculate the latitude and longitude of the second point and the reverse azimuth (2-1). See Geodesics on an ellipsoid for more details. (Out of sheer perversity – I’ve never needed such accuracy – I looked up this formula and discovered. TL;DR - Vincenty's inverse formula provides an accurate method for calcualting the distance between two latitude/longitude pairs. BUN creatinine ratio = blood urea nitrogen (mg/dL) / serum creatinine (mg/dL) In the formula, the units are precise, but in our calculator, you can put the most convenient ones for you – it will recalculate them on its own. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. Only one simple step is to enter the ion in the input field of the calculator and click the calculate button. Free math problem solver answers your linear algebra homework questions with step-by-step explanations. Calculate the distance between two points on Earth The fancy schmancy names for these functions are the “direct geodetic problem” and the “the inverse geodetic problem”. The order of the points does not matter for the formula as long as the points chosen are consistent. 1. 0063 Pa = 0. 1561" S. Rate me: 5. Save Copy. C++, compiled with pybind11; Python (Numpy and pure Python) The formula calculates the azimuth and distance between two points on the surface of a spheroid. I have set up an Excel spreadsheet to calculate using both Vincenty and a couple of formulas using the Great Circle Distance method, and the differences in results are in the hundredths of feet. PI is the initial price. I made some code to calculate length with the vincenty formula, and now I saw geoPHP is missing it, so I added it to LineString. The formulae published by Thaddeus Vincenty include a direct and an inverse method where: The Direct Method computes the location of a point that is a given distance and azimuth from another point. That UDF (the part that was completed) is included in the zip file. Distance was measured using the Vincenty inverse formula for ellipsoids, an iterative method to calculate the ellipsoidal distance between two points on the surface of a spheroid (Thomas. The second part, converts the lat lon coordinates to web mercator and uses the distance and yields 5. T. The inaccuracy is in treating the surface of the Earth as a perfect sphere. Mike Gavaghan. Changelog states: CHANGED: Vincenty usage now issues a warning. There are two standard geodesic problems:So, the first part does the vicenty calculation and the result is: 166. The formula to calculate the arithmetic sequence is: a n = a 0 + n × d. Here’s a calculator to compute the distance, and here’s a derivation of the formula used in the calculator. If the array is already sorted then the inversion count is 0. The Density Calculator uses the formula p=m/V, or density (p) is equal to mass (m) divided by volume (V). Calculate bearing and distance from latitude and longitude. If the substance is an element then the output of this calculator will also contain the number of atoms of that element hence, it acts as a grams to atoms calculator as well. Important in navigation, it is a special case of a more general formula in spherical trigonometry, the law of haversines, that relates the sides and angles of spherical triangles. sphere. The formula for the calculation is quite simple, just check below! Gratuity = Number of years at work × (Last month's salary + D. RSD = relative standard deviation. The figure of the Earth is well approximated by an oblate ellipsoid, a slightly flattened sphere. Calculate the geographical distance (in kilometers or miles) between 2 points with extreme accuracy. Using the most advanced and ridiculously accurate Karney algorithm I'm getting 534105. I need to calculate the distance between the points in every row. 3) performs geodesic calculations for an arbitrary ellipsoid of revolution. For a studio, the recommended value is 323 lx. Lat. Three little php and JS snippets that do the same, calculate the distance between two points on earth in kilometers, miles and nautic miles. In this area of a sphere calculator, we use four equations: Given radius: A = 4 × π × r²; Given diameter: A = π × d²; Given volume: A = ³√ (36 × π × V²); and. At minimum, four inputs are required: lat1, long1, lat2, long2. The sum of the probabilities in this table will always be 1. 2. Inserting the quantities in the calculator, we obtain the result 15. Find the result using the formula: lumens = lux × area = 323 lx × 20 m² = 6,460 lm; If you plan to use lightbulbs with an intensity of 1600 lm, you'll need five of them. (#293) So (especially if we are going to apply the calculation on a WGS84 ellipsoid) we should use geodesic distance. OEE can also be calculated using the simple calculation. The Vincenty formula is commonly used to measure the geographic distance between two points on Earth. 33) by Framingham’s formula: QTc = QT + 0. It seems Vincenty tries to account for that by using different Ellipsoid parameters based on location of the Earth. powered by. It then uses the haversine formula to. The module is made available under terms. Vincenty formula iterates and is able to determine the calculated or formulated accurate outcome to approx. This Vincenty formula is a more numerically stable version of the spherical cosine law formula (commonly and wrongly known as the Haversine formula) for computing great circle distances. read about atan2 in wikipedia. Step 3. Surface Area Calculator. Write in cell C2 and use asterisk symbol (*) to multiply “=A2*4“. Download latest version. You can calculate it using this formula: Rate of return = (final value - initial value) / initial value. geospatial - PHP Geospatial Extension. Then I determine the next coordinate from the trigonometry sine and cosine formula. See also. For the calculation of the course angle the following formulas are used: 1. turf. The function takes care of worrying about the signs of a, b a, b to get the proper quadrant. You can also choose whether the calculator should determine the p-value from Z-test or you'd rather use the critical value. Changelog states: CHANGED: Vincenty usage now issues a warning. 5 × 10-4 m 2 metal plate is placed over a 0. def calculate_transition_cost(self, source, target): max_route_distance = self. 008 nautical miles; Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet. Measured serum osm. Other formulas also exist. By substituting the values of the molar masses of these chemical elements, we get: Molar mass of oxytocin = 43*12. To find the total amount of formula needed for the day, you should multiply the baby's weight in kilograms by 150 ml or 5 fl oz. I copied the beginning of the greatCircleLength function to the beginning of it, so it should be working. Thank you. 4. 6 A, respectively, determine the power factor of the delta system. Reference this content, page, or tool as:This calculator evaluates the angle by the following formula: then it uses formula [1] to calculate the segment area. It is represented by the formula a_n = a_1 + (n-1)d, where a_1 is the first term of the sequence, a_n is the nth term of the sequence, and d is the common difference, which is obtained by subtracting the previous term. y = sinx. 753650629To address this, Thaddeus Vincenty developed a very complicated formula that is accurate up to 0. The tangent formula is: tan (α) = opposite adjacent = a b. 2. It is closer in shape to an oblate spheroid. Find the cone's height h. -the eccentricity of the spheroid (a - the length of the major semiaxis, b - the length of the minor. . Another style of formatting (one including some whitespace) could also help. Quadratic Through 3 Points. Incorrect equation for Direct Problem[edit] I was recently implementing the Vincenty Formulae for solving the direct problem and this equation was wrong: σ = s b A + Δ σ {\displaystyle {\begin {aligned}\sigma &= {\frac {s} {bA}}+\Delta \sigma \end {aligned}}} This gave a distance over several kilometers no matter the tolerance inputted. Replace with in the formula for period. Here are two standard methods: Vincenty's formula (applied above) 6765. import numpy as np def Haversine(lat1,lon1,lat2,lon2, **kwarg): """ This uses the ‘haversine’ formula to calculate the great-circle distance between two points – that is, the shortest distance over the. It uses this same formula to solve for principal, rate or time given the other known values. These longitude and latitude present in KML/ KMZ file fall in with the decimal degrees. Calculate the distance between 2 points on Earth's surface using Vincenty's formula. Enter the latitude and longitude of a location and select convert to show results in DD (Decimal Degrees), DMS (Degrees Minutes Seconds), DMM (Degrees Decimal Minutes). Approximate calculation distance (expanding the trigonometric functions around the midpoint) geo. WGS84; GlobalPosition pointA = new. The first table of haversines in English was published. The calculator-online gives basic to advance level physics calculators that will assists you to solve the different complex problems. 2 × TG. article below : A method is given for calculating the destination point for ellipsoid earth models using Vincenty's formula: Convert the starting point latitude 'lat1' (in the range -90 to 90) to radians. 14 × (0. The extension currently has implementations of the Haversine and Vincenty's formulas for calculating distances, an initial bearing calculation function, a Helmert transformation function to transfer between different supported datums, conversions. Price Elasticity of Demand (PED) = % Change in Quantity Demanded / % Change in Price. 30. DETERMINISTIC. You can also use this formula to set up a compound interest calculator in Excel ®1. You only need to know the resistance, the inductance, and the capacitance values connected in series or parallel. Get the free "Chemical Reaction Calculator" widget for your website, blog, Wordpress, Blogger, or iGoogle. This Z-test calculator is a tool that helps you perform a one-sample Z-test on the population's mean. So the formula would be : 0 = C 1 /(1+r) + C 2 /(1+r) 2 + C 3 /(1+r) 3 - initial investment. Step 3. Then we looked at the more accurate Haversine formula. js" which offers functions for calculating the distance between Lat / Lon, but does not support the calculation with height ( altitude ). This calculator will find the distance between two pairs of coordinates to a very high degree of precision (using the thoroughly nasty Vincenty Formula, which accounts for the flattened shape of the earth). trigonometric-equation-calculator. " The first portion of results contains the best fit values of the slope and Y-intercept terms. Calculate the geographical distance (in kilometers or miles) between 2 points with extreme accuracy.