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arccos( z )

The inverse cosine of z in Math. Defined by

arccos(cosz)=z

Real part on the real axis:

Imaginary part on the real axis:

Real part on the imaginary axis is π2 .

Imaginary part on the imaginary axis:

Real part on the complex plane:

Imaginary part on the complex plane:

Absolute value on the complex plane:

Related functions:   cos   arcsin

Function category: circular functions