Angle difference between two bearings: Difference between revisions
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(adding Common Lisp example) |
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Press any key to continue . . . |
Press any key to continue . . . |
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</pre> |
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=={{header|Common Lisp}}== |
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<lang common lisp> |
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(defun angle-difference (b1 b2) |
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(let ((diff (mod (- b2 b1) 360))) |
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(if (< diff -180) |
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(incf diff 360) |
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(if (> diff 180) |
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(decf diff 360) |
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diff)))) |
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</lang> |
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{{out| Output}} |
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<pre> |
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CL-USER> (angle-difference 20 45) |
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25 |
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CL-USER> (angle-difference -45 45) |
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90 |
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CL-USER> (angle-difference -85 90) |
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175 |
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CL-USER> (angle-difference -95 90) |
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-175 |
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CL-USER> (angle-difference -70099.74 29840.67) |
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-139.58594 |
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</pre> |
</pre> |
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