Documentation

BesselK
in package
Uses ArrayEnabled

Table of Contents

Properties

$arrayArgumentHelper  : ArrayArgumentHelper|null

Methods

BESSELK()  : array<string|int, mixed>|float|string
BESSELK.
evaluateArrayArguments()  : array<string|int, mixed>
Handles array argument processing when the function accepts multiple arguments, and any of them can be an array argument.
evaluateArrayArgumentsIgnore()  : array<string|int, mixed>
Handles array argument processing when the function accepts multiple arguments, and any of them can be an array argument except for the one specified by ignore.
evaluateArrayArgumentsSubset()  : array<string|int, mixed>
Handles array argument processing when the function accepts multiple arguments, but only the first few (up to limit) can be an array arguments.
evaluateArrayArgumentsSubsetFrom()  : array<string|int, mixed>
Handles array argument processing when the function accepts multiple arguments, but only the last few (from start) can be an array arguments.
evaluateSingleArgumentArray()  : array<string|int, mixed>
Handles array argument processing when the function accepts a single argument that can be an array argument.
besselK0()  : float
besselK1()  : float
besselK2()  : float
calculate()  : float
callBesselI()  : float
Mollify Phpstan.
initialiseHelper()  : void
testFalse()  : bool

Properties

Methods

BESSELK()

BESSELK.

public static BESSELK(mixed $x, mixed $ord) : array<string|int, mixed>|float|string

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

Excel Function: BESSELK(x,ord)

Parameters
$x : mixed

A float value at which to evaluate the function. If x is nonnumeric, BESSELK returns the #VALUE! error value. Or can be an array of values

$ord : mixed

The integer order of the Bessel function. If ord is not an integer, it is truncated. If $ord is nonnumeric, BESSELK returns the #VALUE! error value. If $ord < 0, BESSELKI returns the #NUM! error value. Or can be an array of values

Return values
array<string|int, mixed>|float|string —

Result, or a string containing an error If an array of numbers is passed as an argument, then the returned result will also be an array with the same dimensions

evaluateArrayArguments()

Handles array argument processing when the function accepts multiple arguments, and any of them can be an array argument.

protected static evaluateArrayArguments(callable $method, mixed ...$arguments) : array<string|int, mixed>

Example use for: ROUND() or DATE().

Parameters
$method : callable
$arguments : mixed
Return values
array<string|int, mixed>

evaluateArrayArgumentsIgnore()

Handles array argument processing when the function accepts multiple arguments, and any of them can be an array argument except for the one specified by ignore.

protected static evaluateArrayArgumentsIgnore(callable $method, int $ignore, mixed ...$arguments) : array<string|int, mixed>

Example use for: HLOOKUP() and VLOOKUP(), where argument 1 is a matrix that needs to be treated as a database rather than as an array argument.

Parameters
$method : callable
$ignore : int
$arguments : mixed
Return values
array<string|int, mixed>

evaluateArrayArgumentsSubset()

Handles array argument processing when the function accepts multiple arguments, but only the first few (up to limit) can be an array arguments.

protected static evaluateArrayArgumentsSubset(callable $method, int $limit, mixed ...$arguments) : array<string|int, mixed>

Example use for: NETWORKDAYS() or CONCATENATE(), where the last argument is a matrix (or a series of values) that need to be treated as a such rather than as an array arguments.

Parameters
$method : callable
$limit : int
$arguments : mixed
Return values
array<string|int, mixed>

evaluateArrayArgumentsSubsetFrom()

Handles array argument processing when the function accepts multiple arguments, but only the last few (from start) can be an array arguments.

protected static evaluateArrayArgumentsSubsetFrom(callable $method, int $start, mixed ...$arguments) : array<string|int, mixed>

Example use for: Z.TEST() or INDEX(), where the first argument 1 is a matrix that needs to be treated as a dataset rather than as an array argument.

Parameters
$method : callable
$start : int
$arguments : mixed
Return values
array<string|int, mixed>

evaluateSingleArgumentArray()

Handles array argument processing when the function accepts a single argument that can be an array argument.

protected static evaluateSingleArgumentArray(callable $method, array<string|int, mixed> $values) : array<string|int, mixed>

Example use for: DAYOFMONTH() or FACT().

Parameters
$method : callable
$values : array<string|int, mixed>
Return values
array<string|int, mixed>

besselK0()

private static besselK0(float $x) : float
Parameters
$x : float
Return values
float

besselK1()

private static besselK1(float $x) : float
Parameters
$x : float
Return values
float

besselK2()

private static besselK2(float $x, int $ord) : float
Parameters
$x : float
$ord : int
Return values
float

calculate()

private static calculate(float $x, int $ord) : float
Parameters
$x : float
$ord : int
Return values
float

callBesselI()

Mollify Phpstan.

private static callBesselI(float $x, int $ord) : float
Parameters
$x : float
$ord : int
Tags
codeCoverageIgnore
Return values
float

initialiseHelper()

private static initialiseHelper(array<string|int, mixed>|false $arguments) : void
Parameters
$arguments : array<string|int, mixed>|false

Can be changed to array for Php8.1+

testFalse()

private static testFalse(mixed $value) : bool
Parameters
$value : mixed
Return values
bool 

        

        
    




    

    

                                

                

                                
    

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