cutcutcodec.core.compilation.sympy_to_torch.printer_atom.c_log

cutcutcodec.core.compilation.sympy_to_torch.printer_atom.c_log(out: Symbol, indexing: defaultdict[Symbol, str], c_type: str, arg: Atom) → tuple[set[str], set[Symbol], list[str]][source]

C log operation.

Examples

>>> from sympy.abc import x
>>> from sympy.functions.elementary.exponential import log
>>> import numpy as np
>>> from cutcutcodec.core.compilation.sympy_to_torch.lambdify import _lambdify_c
>>> from cutcutcodec.core.compilation.sympy_to_torch.printer import _print_atomic, _printer
>>> func = _lambdify_c(_printer([(x, log(x))], {}, {x}))
>>> func(np.array([np.nan]))
array([nan])
>>> func(np.array([0.0, 1.0, np.e, np.inf]))
array([-inf,   0.,   1.,  inf])
>>>