Function fessoti_set_deriv_r# Defined in File semisparse/scalar/gauss/base.h Function Documentation# void fessoti_set_deriv_r(coeff_t val, imdir_t idx, ord_t order, fessoti_t *num, dhelpl_t dhl)# Set a specific derivative. Parameters: idx – [in] Index of imaginary direction. order – [in] Order of imaginary direction. num – [in] Number. res – [in] Result dhl – [in] Direction helper list