- Let us try to calculate the range of the function:
**octave:12> x = 0.5;****octave:13> f = exp(-5*sqrt(x))*sin(2*pi*x)****f = 3.5689e-018** - In a more useful vector form:
**octave:14> x = [0:0.1:1];****octave:15> f = exp(-5*sqrt(x)).*sin(2*pi*x)****f =****Columns 1 through 7:****0.00000 0.12093 0.10165 0.01650 0.02488 0.00000 -0.01222****Columns 8 through 11:****-0.01450 -0.01086 -0.00512 -0.00000**

It should be clear what Commands 12 and 13 do. In Command 15, we must use the element-wise `.*`

operator. Had we not done so, Octave would try to perform a matrix multiplication between the vectors given ...

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