Learn about function notation, how to find an inverse function by changing the subject, and how to work with composite functions.

An inverse function can be thought of as an opposite, in that it undoes what the original function has done. Finding the inverse of a quadratic function can prove to be challenging due to their curved ...

Determine composite and inverse functions for trigonometric, logarithmic, exponential or algebraic functions as part of Bitesize Higher Maths ...

When creating formulas and equations on Microsoft Excel, users have the option of inserting multiple functions and conditions into a formula to attain a desired result. This action is often referred ...

The INV function uses an LU decomposition followed by backsubstitution to solve for the inverse, as described in Forsythe, Malcolm, and Moler (1967). The INV function (as well as the and ) uses the ...

Coefficient bounds for functions with a positive real part are used in a rather novel way to find sharp bounds for the first six coefficients of a function which is inverse to a regular normalized ...

This report presents near-minimax rational approximations for the inverse of the error function inverf $x$, for $0 \leqslant x \leqslant 1 - 10^ {-10000}$, with relative errors ranging down to $10^ ...