# sfepy.linalg.check_derivatives module

Utilities for checking derivatives of functions.

sfepy.linalg.check_derivatives.check_fx(x0, fx, fx_args, dfx, dfx_args=None, delta=1e-05)

  Check derivatives of a (vectorized) scalar function of a scalar variable.

sfepy.linalg.check_derivatives.check_vfvx(x0, fx, fx_args, dfx, dfx_args=None, delta=1e-05)

  Check derivatives of a (vectorized) vector or scalar function of a vector variable.