A PHP extension for scientific computing. Inspired by NumPy & NumPHP.

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1. Installing/Configuring
   • Requirement
   • Installation
2. Classes and methods
   • Usage
   • Characteristics
   • Statistics
   • Arithmetic Operations
   • Universal Functions

Everything you should need to install phpnum on your system.

• PHP 7 +

phpize
./configure
make && make install

make install copies num.so to an appropriate location, but you still need to enable the module in the PHP config file. To do so, either edit your php.ini or add a num.ini file in /path/to/php.d with the following contents: extension=num.so.

1. Class Num - Creates a Num object
2. Class NumNdarray - Creates a N-dimensional array (ndarray) object
3. Printing - Prints a ndarray object

Description: Creates a Num object

$num = new Num();

Description: Creates a N-dimensional array (ndarray) object

array: Array

ndarray: Object

$num = new Num();
$ndarray = $num->array([[1.0, 2, 3], [2, 3, 4]]);

Description: Prints a ndarray object

$num = new Num();
$ndarray = $num->array([[1.0, 2, 3], [2, 3, 4]]);
echo $ndarray;
/* output: 
array([
  [1,2,3],
  [2,3,4]
])
*/

1. getData - Data of the ndarray
2. getShape - Shape of ndarray dimensions
3. getNdim - Number of ndarray dimensions
4. getSize - Number of elements in the ndarray

Description: Data of the ndarray

None

data: Array

$ndarray = $num->array([[1.0, 2, 3], [2, 3, 4]]);
$ndarray->getData(); // returns array([1.0, 2, 3], [2, 3, 4])

Description: Shape of ndarray dimensions

None

shape: Array

$ndarray = $num->array([[1.0, 2, 3], [2, 3, 4]]);
$ndarray->getShape(); // returns array(2, 3)

Description: Number of ndarray dimensions

None

ndim: LONG

$ndarray = $num->array([[1.0, 2, 3], [2, 3, 4]]);
$ndarray->getNdim(); // returns 2

Description: Number of elements in the ndarray

None

size: LONG

$ndarray = $num->array([[1.0, 2, 3], [2, 3, 4]]);
$ndarray->getSize(); // returns 6

1. amin - Return the minimum of an array
2. amax - Return the maximum of an array

Description: Return the minimum of an array

ndarray: Object

amin: Double

$ndarray = $num->array([[3.2, 1.5, 1], [2.5, 4, 2]]);
$num->min($ndarray); // returns 1

Description: Return the maximum of an array

ndarray: Object

amax: Double

$ndarray = $num->array([[3.2, 1.5, 1], [2.5, 4, 2]]);
$num->amax($ndarray); // returns 4

1. add - Add an array to an other array
2. sub - Subtract an array from an other array
3. mult - Multiply an array by an other array
4. div - an array divided by an other array

Description: Add an array to an other array

ndarray: Object

ndarray: Object

$a = $num->array([[1.0, 2, 3], [2, 3, 4]]);
$b = $num->array([[3.2, 1.5, 1], [2.5, 4, 2]]);
echo $a->add($b);
/* output:
array([
  [4.2,3.5,4],
  [4.5,7,6]
])
*/

Description: Subtract an array from an other array

ndarray: Object

ndarray: Object

$a = $num->array([[1.0, 2, 3], [2, 3, 4]]);
$b = $num->array([[3.2, 1.5, 1], [2.5, 4, 2]]);
echo $a->sub($b);
/* output:
array([
  [-2.2,0.5,2],
  [-0.5,-1,2]
])
*/

Description: Multiply an array by an other array

ndarray: Object

ndarray: Object

$a = $num->array([[1.0, 2, 3], [2, 3, 4]]);
$b = $num->array([[3.2, 1.5, 1], [2.5, 4, 2]]);
echo $a->mult($b);
/* output:
array([
  [3.2,3,3],
  [5,12,8]
])
*/

Description: an array divided by an other array

ndarray: Object

ndarray: Object

$a = $num->array([[1.0, 2, 3], [2, 3, 4]]);
$b = $num->array([[3.2, 1.5, 1], [2.5, 4, 2]]);
echo $a->div($b);
/* output:
array([
  [0.3125,1.3333333333333,3],
  [0.8,0.75,2]
])
*/

1. power - First array elements raised to powers from second array, element-wise
2. square - Return the element-wise square of the input
3. sqrt - Return the positive square-root of an array, element-wise
4. exp - Calculate the exponential of all elements in the input array
5. log - Natural logarithm, element-wise
6. log10 - Return the base 10 logarithm of the input array, element-wise
7. sin - Trigonometric sine, element-wise
8. cos - Cosine element-wise
9. tan - Compute tangent element-wise
10. ceil - Return the ceiling of the input, element-wise
11. floor - Return the floor of the input, element-wise
12. fabs - Compute the absolute values element-wise

Description: First array elements raised to powers from second array, element-wise

base: Object

exponent: Object or Double

array: Array

$ndarray = $num->array([[0.5, 1], [0, 2]]);
$num->power($ndarray, 3);
// returns array([[0.125, 1.0], [0.0, 8.0]])

Description: Return the element-wise square of the input

ndarray: Object

array: Array

$ndarray = $num->array([[0.5, 1], [0, 2]]);
$num->square($ndarray);
// returns array([[0.5, 1.0], [0.0, 4.0]])

Description: Return the positive square-root of an array, element-wise

ndarray: Object

array: Array

$ndarray = $num->array([[0.5, 1], [0, 2]]);
$num->sqrt($ndarray);
// returns array([[0.70710678118654757, 1.0], [0.0, 1.4142135623730951]])

Description: Calculate the exponential of all elements in the input array

ndarray: Object

array: Array

$ndarray = $num->array([[0.5, 1], [0, 2]]);
$num->exp($ndarray);
// returns array([[1.6487212707001282, 2.7182818284590451], [1.0, 7.3890560989306504]])

Description: Natural logarithm, element-wise

ndarray: Object

array: Array

$ndarray = $num->array([[0.5, 1], [10, 2]]);
$num->log($ndarray);
// returns array([[-0.69314718055994529, 0.0], [2.3025850929940459, 0.69314718055994529]])

Description: Return the base 10 logarithm of the input array, element-wise

ndarray: Object

array: Array

$ndarray = $num->array([[1e-1, 1], [10, 100]]);
$num->log10($ndarray);
// returns array([[-1.0, 0.0], [1.0, 2.0]])

Description: Trigonometric sine, element-wise

ndarray: Object

array: Array

$ndarray = $num->array([[0.5, 1], [0, 2]]);
$num->sin($ndarray);
// returns array([[0.47942553860420301, 0.8414709848078965], [0.0, 0.90929742682568171]])

Description: Cosine element-wise

ndarray: Object

array: Array

$ndarray = $num->array([[0.5, 1], [0, 2]]);
$num->cos($ndarray);
// returns array([[0.87758256189037276, 0.54030230586813977], [1.0, -0.41614683654714241]])

Description: Compute tangent element-wise

ndarray: Object

array: Array

$ndarray = $num->array([[0.5, 1], [0, 2]]);
$num->tan($ndarray);
// returns array([[0.54630248984379048, 1.5574077246549023], [0.0, -2.1850398632615189]])

Description: Return the ceiling of the input, element-wise

ndarray: Object

array: Array

$ndarray = $num->array([[0.5, 1], [0, 2]]);
$num->ceil($ndarray);
// returns array([[1.0, 1.0], [0.0, 2.0]])

Description: Return the floor of the input, element-wise

ndarray: Object

array: Array

$ndarray = $num->array([[0.5, 1], [0, 2]]);
$num->floor($ndarray);
// returns array([[0.0, 1.0], [0.0, 2.0]])

Description: Compute the absolute values element-wise

ndarray: Object

array: Array

$ndarray = $num->array([[0.5, 1], [0, -2]]);
$num->fabs($ndarray);
// returns array([[0.0, 1.0], [0.0, 2.0]])