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tf.math.special.expint

Computes the Exponential integral of x element-wise.

The Exponential integral is defined as the integral of exp(t) / t from -inf to x, with the domain of definition all positive real numbers.

tf.math.special.expint([1., 1.1, 2.1, 4.1]).numpy()
array([ 1.8951179,  2.1673784,  5.3332353, 21.048464], dtype=float32)

This implementation is based off of the Cephes math library.

x A Tensor or SparseTensor. Must be one of the following types: float32, float64.
name A name for the operation (optional).

A Tensor or SparseTensor, respectively. Has the same type as x.

scipy compatibility

Equivalent to scipy.special.expi