NumPy Reference — NumPy v1.22 Manual
https://numpy.org/doc/stable/reference22.06.2021 · NumPy-specific help functions Indexing routines Input and output Linear algebra ( numpy.linalg) Logic functions Masked array operations Mathematical functions Matrix library ( numpy.matlib) Miscellaneous routines Padding Arrays Polynomials Random sampling ( numpy.random) Set routines Sorting, searching, and counting Statistics
Mathematical functions — NumPy v1.22 Manual
https://numpy.org › doc › referenceTrigonometric functions¶ ; arcsin (x, /[, out, where, casting, order, ...]) Inverse sine, element-wise. ; arccos (x, /[, out, where, casting, order, ...]).