How to resolve the algorithm Angle difference between two bearings step by step in the Arturo programming language

Published on 12 May 2024 09:40 PM
#Arturo

How to resolve the algorithm Angle difference between two bearings step by step in the Arturo programming language

Table of Contents

Problem Statement

Finding the angle between two bearings is often confusing.[1]

Find the angle which is the result of the subtraction b2 - b1, where b1 and b2 are the bearings. Input bearings are expressed in the range   -180   to   +180   degrees. The  result  is also expressed in the range   -180   to   +180   degrees.

Compute the angle for the following pairs:

Allow the input bearings to be any (finite) value.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Angle difference between two bearings step by step in the Arturo programming language

Source code in the arturo programming language

getDifference: function [b1, b2][
    r: (b2 - b1) % 360.0

    if r >= 180.0 ->
        r: r - 360.0

    return r
]

print "Input in -180 to +180 range"
print getDifference 20.0 45.0
print getDifference neg 45.0 45.0
print getDifference neg 85.0 90.0
print getDifference neg 95.0 90.0
print getDifference neg 45.0 125.0
print getDifference neg 45.0 145.0
print getDifference neg 45.0 125.0
print getDifference neg 45.0 145.0
print getDifference 29.4803 neg 88.6381
print getDifference neg 78.3251 neg 159.036

print ""
print "Input in wider range"
print getDifference neg 70099.74233810938 29840.67437876723
print getDifference neg 165313.6666297357 33693.9894517456
print getDifference 1174.8380510598456 neg 154146.66490124757
print getDifference 60175.77306795546 42213.07192354373

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