I am looking for a symbol to use for "induces" (in the mathematical sense, one object can induce another). The symbol leadsto: $\leadsto$ (latexsym package) is of the perfect shape, but it is just too small. I would particularly like to be able to control the length of this arrow, and ideally it would acquire more humps the longer it gets.
Does anyone know of a package that will let me do this?