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Parameters

all : {'ignore', 'warn' 'raise'}, optional

Set treatment for all type of special-function errors at once. The options are:

The default is to not change the current behavior. If behaviors for additional categories of special-function errors are specified, then all is applied first, followed by the additional categories.

singular : {'ignore', 'warn', 'raise'}, optional

Treatment for singularities.

underflow : {'ignore', 'warn', 'raise'}, optional

Treatment for underflow.

overflow : {'ignore', 'warn', 'raise'}, optional

Treatment for overflow.

slow : {'ignore', 'warn', 'raise'}, optional

Treatment for slow convergence.

loss : {'ignore', 'warn', 'raise'}, optional

Treatment for loss of accuracy.

no_result : {'ignore', 'warn', 'raise'}, optional

Treatment for failing to find a result.

domain : {'ignore', 'warn', 'raise'}, optional

Treatment for an invalid argument to a function.

arg : {'ignore', 'warn', 'raise'}, optional

Treatment for an invalid parameter to a function.

other : {'ignore', 'warn', 'raise'}, optional

Treatment for an unknown error.

Returns

olderr : dict

Dictionary containing the old settings.

Set how special-function errors are handled.

See Also

errstate

context manager for special-function error handling

geterr

get the current way of handling special-function errors

numpy.seterr

similar numpy function for floating-point errors

Examples

>>> import scipy.special as sc
... from pytest import raises
... sc.gammaln(0) inf
>>> olderr = sc.seterr(singular='raise')
... with raises(sc.SpecialFunctionError):
...  sc.gammaln(0) ...
>>> _ = sc.seterr(**olderr)

We can also raise for every category except one.

>>> olderr = sc.seterr(all='raise', singular='ignore')
... sc.gammaln(0) inf
>>> with raises(sc.SpecialFunctionError):
...  sc.spence(-1) ...
>>> _ = sc.seterr(**olderr)
See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

scipy.special._ufuncs.geterr scipy.special._ufuncs.seterr scipy.special._ufuncs.errstate

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