[#14602] laplace_transform() does not validate negative s_value despite documented non-negative requirement

[jgohel9902]

Feature description

Description

The laplace_transform() function documentation says that s_value must be non-negative, but the implementation currently does not validate this condition.

Because of this, users can pass a negative s_value, even though the function docstring states that only real-valued, non-negative Laplace parameters are supported.

File

maths/laplace_transformation.py

Relevant lines

Around line 17–18, the docstring says:

This implementation supports only real-valued, non-negative Laplace
parameters `s`.