pymc.math.arcsin#

pymc.math.arcsin = Elemwise(scalar_op=arcsin,inplace_pattern=<frozendict {}>)[source]#

arcsine of a

Computes element-wise inverse sine (arc sine) of a tensor.

Parameters:

aTensorLike: Input tensor (values should be in the range [-1, 1])

Returns:

TensorVariable: Output tensor with the arc sine of each element in radians, in the range [-π/2, π/2]

Notes

This function corresponds to NumPy’s np.arcsin function. The values returned are in the range [-π/2, π/2]. Input values outside the domain [-1, 1] will produce NaN outputs.

Examples

>>> import pytensor
>>> import pytensor.tensor as pt
>>> x = pt.vector("x")
>>> f = pytensor.function([x], pt.arcsin(x))
>>> f([-1, 0, 1])
array([-1.57079633,  0.        ,  1.57079633])