Rescale

Rescale[x,{min,max}] gives x rescaled to run from 0 to 1 over the range min to max. 

Rescale[x,{min,max},{ymin,ymax}] gives x rescaled to run from ymin to ymax over the range min to max. 

Rescale[list] rescales each element of list to run from 0 to 1 over the range Min[list] to Max[list]. 

Please visit the official Wolfram Language Reference for more details and examples on core symbols.