Current Location: Home> Function Categories> is_nan

is_nan

Determine whether it is a legal value
Name:is_nan
Category:math
Programming Language:php
One-line Description:Determine whether it is a legal value.
Related
Similar Functions
  • Generate better random numbers mt_rand

    mt_rand

    Generatebetterrandom
  • Calculate the oblique length of a straight triangle hypot

    hypot

    Calculatetheobliquel
  • Cosine cos

    cos

    Cosine
  • Logarithm with base 10 log10

    log10

    Logarithmwithbase10
  • Arctangle of two parameters atan2

    atan2

    Arctangleoftwoparame
  • Convert octal to decimal octdec

    octdec

    Convertoctaltodecima
  • Hyperbolic tangent tanh

    tanh

    Hyperbolictangent
  • Round floating point numbers round

    round

    Roundfloatingpointnu
Popular Articles