Horizontal sundial calculations: Difference between revisions

m
→‎{{header|REXX}}: corrected spelling error.
m (→‎{{header|REXX}}: expanded comment about pi.)
m (→‎{{header|REXX}}: corrected spelling error.)
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/*John Machin's formula. */
 
2dd2d: return arg(1)//360 /*normalize degrees►1 unit circle*/
d2r: return r2r(arg(1)*pi()/180) /*convert degrees ──► radians. */
r2d: return d2d((arg(1)*180/pi())) /*convert radians ──► degrees. */