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

Published on 12 May 2024 09:40 PM
#Phixmonti

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

Source code in the phixmonti programming language

include ..\Utilitys.pmt

( "16" 1 "16" 1 "16" ) var al

def difAngle    /# b1 b2 -- diff #/
    swap - 360 mod
    dup 180 > if 360 - endif
enddef

def test    /# b1 b2 -- #/
    over over difAngle >ps swap " " rot " " ps> 5 tolist
    al lalign ?
enddef

( "b1" " " "b2" " " "diff" ) al lalign ?
"---------------- ---------------- ----------------" ?
20 45 test
-45 45 test
-85 90 test
-95 90 test
-45 125 test
-45 145 test
29.4803 -88.6381 test
-78.3251 -159.036 test
-70099.74233810938 29840.67437876723 test
-165313.6666297357 33693.9894517456 test
1174.8380510598456 -154146.66490124757 test
60175.77306795546 42213.07192354373 test

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