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21.1.1  Boxcar function

The boxcar command creates a function which has the value 1 in a given interval, and otherwise 0.

Examples

boxcar(1,2,x)
     
θ
x−1
θ
x−2
          
boxcar(1,2,3/2)
     
1           
boxcar(1,2,0)
     
0           

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