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bundles / scipy latest / scipy / special / _basic / euler

function

scipy.special._basic:euler

source: /scipy/special/_basic.py :1815

Signature

def   euler ( n )

Summary

Euler numbers E(0), E(1), ..., E(n).

Extended Summary

The Euler numbers [1] are also known as the secant numbers.

Because euler(n) returns floating point values, it does not give exact values for large n. The first inexact value is E(22).

Parameters

n : int

The highest index of the Euler number to be returned.

Returns

: ndarray

The Euler numbers [E(0), E(1), ..., E(n)]. The odd Euler numbers, which are all zero, are included.

Examples

import numpy as np
from scipy.special import euler
euler(6)
✓
euler(13).astype(np.int64)
✓
euler(22)[-1]  # Exact value of E(22) is -69348874393137901.
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Aliases

  • scipy.special.euler