This is documentation for an old release of NumPy (version 1.18). Read this page Search for this page in the documentation of the latest stable release (version 2.2).

Functional programming

apply_along_axis(func1d, axis, arr, \*args, …)	Apply a function to 1-D slices along the given axis.
apply_over_axes(func, a, axes)	Apply a function repeatedly over multiple axes.
vectorize(pyfunc[, otypes, doc, excluded, …])	Generalized function class.
frompyfunc(func, nin, nout)	Takes an arbitrary Python function and returns a NumPy ufunc.
piecewise(x, condlist, funclist, \*args, \*\*kw)	Evaluate a piecewise-defined function.