Rounding Routines

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ceil

public static ceil($x) : CArray

The ceiling of the input, element-wise.

Parameters

CArray|Array $x Input array.

Returns

CArray The ceiling of each element in $x.

Examples

Example 1

$a = new CArray([-1.7, -1.5, -0.2, 0.2, 1.5, 1.7, 2.0]);
echo CArray::ceil($a);

[ -1.  -1.   0.   1.   2.   2.   2. ]

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floor

public static floor($x) : CArray

The floor of the input, element-wise.

Parameters

CArray|Array $x Input array.

Returns

CArray The floor of each element in $x.

Examples

Example 1

$a = new CArray([-1.7, -1.5, -0.2, 0.2, 1.5, 1.7, 2.0]);
echo CArray::floor($a);

[ -2.  -2.  -1.   0.   1.   1.   2. ]

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around

public static around($x, int $decimals = 0) : CArray

Evenly round to the given number of decimals.

Parameters

CArray|Array $x Input array.

int $decimals Number of decimal places to round to (default: 0). If decimals is negative, it specifies the number of positions to the left of the decimal point.

Returns

CArray An array of the same type as $a, containing the rounded values.

Examples

Example 1

$a = CArray::around([0.37, 1.64]);
echo $a;

[ 0.  2. ]

Example 2

$a = CArray::around([0.37, 1.64], 2);
echo $a;

[ 0.37000000  1.64000000 ]