Adams Car Package > Shared Material > Appendix > Curve Math Operations - Shift Curve to Start at Zero (y)

Curve Math Operations - Shift Curve to Start at Zero (y)

 
For the option:
Do the following:
Zero
Select to shift the start of the curve to zero. The rest of the curve will be moved by the same amount, such that the gradient of the curve remains constant, but the y values of the curve are shifted by an amount equal to the start value of the curve, minus zero.