Exponents and logarithms Routines

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exp

public static exp($x) : CArray

Calculate the exponential of all elements.

Parameters

CArray|Array $x Input array.

Returns

CArray Output array, element-wise exponential of $x.

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expm1

public static expm1($x) : CArray

Calculate exp($x) - 1 for all elements in the array.

Parameters

CArray|Array $x Input array.

Returns

CArray Output array, element-wise exp($x)-1 of $x.

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exp2

public static exp2($x) : CArray

Calculate 2**p for all p (value) in the input array.

Parameters

CArray|Array $x Input array.

Returns

CArray Output array, element-wise 2**p of $x.

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log

public static log($x) : CArray

Natural logarithm, element-wise.

Parameters

CArray|Array $x Input array.

Returns

CArray Output array, element-wise natural logarithm of $x.

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log10

public static log10($x) : CArray

Return the base 10 logarithm of $x, element-wise.

Parameters

CArray|Array $x Input array.

Returns

CArray Output array, element-wise base 10 logarithm of $x.

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log2

public static log2($x) : CArray

Base-2 logarithm of $x.

Parameters

CArray|Array $x Input array.

Returns

CArray Output array, element-wise base 2 logarithm of $x.

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log1p

public static log1p($x) : CArray

Calculates log(1 + $x) of $x

Parameters

CArray|Array $x Input array.

Returns

CArray Output array, element-wise log(1 + $x) of $x.