Bela

It's quite common to need exponential/logarithmic mappings, not just linear, so here's a little (low priority) request for that.

FWIW, the interface in supercollider looks like:

y = linlin(x, in_lo, in_hi, out_lo, out_hi)    // equivalent of Bela's map()
       y = linexp(x, in_lo, in_hi, out_lo, out_hi)    // linear to exponential
       y = explin(x, in_lo, in_hi, out_lo, out_hi)    // exponential to linear