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Long Term Support Release

  • Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
  • Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
  • PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.
/lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Engineering/ -> BesselK.php (source)

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Differences Between: [Versions 400 and 401]

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File Size: 135 lines (4 kb)
Included or required:0 times
Referenced: 0 times
Includes or requires: 0 files

Defines 1 class

BesselK:: (6 methods):
  BESSELK()
  calculate()
  callBesselI()
  besselK0()
  besselK1()
  besselK2()


Class: BesselK  - X-Ref

BESSELK($x, $ord)   X-Ref
BESSELK.

Returns the modified Bessel function Kn(x), which is equivalent to the Bessel functions evaluated
for purely imaginary arguments.

Excel Function:
BESSELK(x,ord)

param: mixed $x A float value at which to evaluate the function.
param: mixed $ord The integer order of the Bessel function.
return: array|float|string Result, or a string containing an error

calculate(float $x, int $ord)   X-Ref
No description

callBesselI(float $x, int $ord)   X-Ref
Mollify Phpstan.


besselK0(float $x)   X-Ref
No description

besselK1(float $x)   X-Ref
No description

besselK2(float $x, int $ord)   X-Ref
No description