deriv

Operations.deriv(ir='', iy='', ix='', name='', facta='', **kwargs)

Differentiates a variable.

Mechanical APDL Command: DERIV

Parameters:

irstr

Arbitrary reference number assigned to the resulting variable (2 to NV ( numvar )). If this number is the same as for a previously defined variable, the previously defined variable will be overwritten with this result.

iystr

Reference numbers of variables to be operated on. IY is differentiated with respect to IX.

ixstr

Reference numbers of variables to be operated on. IY is differentiated with respect to IX.

namestr

Thirty-two character name for identifying the variable on printouts and displays. Embedded blanks are compressed for output.

factastr

Scaling factor (positive or negative) applied as shown below (defaults to 1.0).

Notes

Differentiates variables according to the operation:

IR = FACTA x d( IY )/d( IX )

Variable IX must be in ascending order.