NInvert Command

NInvert( <Function> )

Gives the inverse of the function without showing the inverted formula. If you want to get the formula, use the Invert Command instead.

NInvert(sin(x)) yields a function f such that sin(f(x))=x for -1 < x < 1.

  • No account is taken of domain or range, for example for f(x) = x2 or f(x) = sin(x).

  • The command works faster for functions that only contain one x. To make your construction more efficient you may want to rearrange your functions and use eg NInvert((x+1)^2-1) rather than NInvert(x^2+2x).