Graph Software for Scientists and Engineers

ACOS(x)

Returns the arccosine, or inverse cosine, of the given number. The result will be in radians or degrees, depending on the Angles options. With "degrees" selected, acos(-1) returns 180.

y=acos(x)

See also:

ASIN
COSINE
Trigonometric and General Math Functions

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RUNS ON
Windows 10,
Windows 8,
Windows 7, 2008,
Vista, XP, NT,
ME, 2003, 2000,
Windows 98, 95
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