_compute_absolute_step(rel_step, x0, f0, method)
h
will always be np.float64. However, if :None:None:`x0`
or :None:None:`f0`
are smaller floating point dtypes (e.g. np.float32), then the absolute step size will be calculated from the smallest floating point size.
Relative step for the finite difference calculation
Parameter vector
The absolute step size
Computes an absolute step from a relative step for finite difference calculation.
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