acos

calculate the inverse cosine of given angle

Parameters

acos angle :integer :floating :complex :rational :quantity

Returns

  • :floating
  • :complex

Examples

copy
print acos 0                ; 1.570796326794897
print acos 0.3              ; 1.266103672779499
print acos 1.0              ; 0.0

copy
acos to :complex @[pi 1]
; => 0.3222532939814587-1.86711439316026i

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