autodiff.cos

autodiff.cos(x)

Return the cosine of x.

Parameters

xint, float, Dual

Returns

yfloat or Dual

Examples

>>> ad.cos(np.pi / 2)
0.0

>>> x = ad.Dual(np.pi / 2)
>>> ad.cos(x)
Dual(0.0, array([-1.0]))

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