Ramp[x] gives x if x>=0 and 0 otherwise.

Evaluate numerically: In[1]:=Ramp[-1] Out[1]=0 In[2]:=Ramp[3.7] Out[2]=3.7 Plot over a subset of the reals: In[1]:=Plot[Ramp[x], {x, -2, 2}] Out[1]= Ramp is a piecewise function: In[1]:=PiecewiseExpand[Ramp[x]] Out[1]= piecewise | x | x>=0 0 | True

Listable | NumericFunction | Protected

UnitStep | LogisticSigmoid | HeavisideTheta

976th most common (1 in 94700 symbols)

999th most common (1 in 18800 symbols)

introduced in Version 11 (August 2016)