bundles / scipy 2.0.0.dev0+git20260907.41eeb59 / scipy / constants / _constants / lambda2nu

function

`scipy.constants._constants:lambda2nu`

source: build-install/usr/lib/python3.14/site-packages/scipy/constants/_constants.py:308

Signature

def lambda2nu(lambda_: npt.ArrayLike) → Any

Summary

Convert wavelength to optical frequency.

Parameters

lambda_ : array_like: Wavelength(s) to be converted.

Returns

nu : float or array of floats: Equivalent optical frequency.

Notes

Computes nu = c / lambda where c = 299792458.0, i.e., the (vacuum) speed of light in meters/second.

Examples

from scipy.constants import lambda2nu, speed_of_light
import numpy as np

✓

lambda2nu(np.array((1, speed_of_light)))

✗

array([3.e+08, 1.e+00])

Aliases

scipy.constants.lambda2nu