Check Machin-like formulas: Difference between revisions

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Programming notes:
Programming notes:
:::* REXX doesn't have many math functions, so a few of them are included here.
:::* REXX doesn't have many math functions, so a few of them are included here.
:::* The value of &nbsp; <math>\pi</math> &nbsp; should be at least as accurate as &nbsp; '''digs'''.
:::* The value of &nbsp; &nbsp; <big><big>&pi;</big></big> &nbsp; should be at least as accurate as &nbsp; '''digs'''.
:::* If any formula needs any high math functions, they need to be included.
:::* If any formula needs any high math functions, they need to be included.
<lang rexx>/*REXX program evaluates some expressions and verifies their veracity.*/
<lang rexx>/*REXX program evaluates some expressions and verifies their veracity.*/