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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?php

use Complex\Complex as Complex;

< include('../classes/Bootstrap.php');
> include(__DIR__ . '/../vendor/autoload.php');
echo 'Create', PHP_EOL; $x = new Complex(123); echo $x, PHP_EOL; $x = new Complex(123, 456); echo $x, PHP_EOL; $x = new Complex(array(123,456,'j')); echo $x, PHP_EOL; $x = new Complex('1.23e-4--2.34e-5i'); echo $x, PHP_EOL; echo PHP_EOL, 'Add', PHP_EOL; $x = new Complex(123); $x->add(456); echo $x, PHP_EOL; $x = new Complex(123.456); $x->add(789.012); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->add(new Complex(-987.654, -32.1)); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->add(-987.654); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->add(new Complex(0, 1)); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->add(new Complex(0, -1)); echo $x, PHP_EOL; echo PHP_EOL, 'Subtract', PHP_EOL; $x = new Complex(123); $x->subtract(456); echo $x, PHP_EOL; $x = new Complex(123.456); $x->subtract(789.012); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->subtract(new Complex(-987.654, -32.1)); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->subtract(-987.654); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->subtract(new Complex(0, 1)); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->subtract(new Complex(0, -1)); echo $x, PHP_EOL; echo PHP_EOL, 'Multiply', PHP_EOL; $x = new Complex(123); $x->multiply(456); echo $x, PHP_EOL; $x = new Complex(123.456); $x->multiply(789.012); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->multiply(new Complex(-987.654, -32.1)); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->multiply(-987.654); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->multiply(new Complex(0, 1)); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->multiply(new Complex(0, -1)); echo $x, PHP_EOL; echo PHP_EOL, 'Divide By', PHP_EOL; $x = new Complex(123); $x->divideBy(456); echo $x, PHP_EOL; $x = new Complex(123.456); $x->divideBy(789.012); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->divideBy(new Complex(-987.654, -32.1)); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->divideBy(-987.654); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->divideBy(new Complex(0, 1)); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->divideBy(new Complex(0, -1)); echo $x, PHP_EOL; echo PHP_EOL, 'Divide Into', PHP_EOL; $x = new Complex(123); $x->divideInto(456); echo $x, PHP_EOL; $x = new Complex(123.456); $x->divideInto(789.012); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->divideInto(new Complex(-987.654, -32.1)); echo $x, PHP_EOL; $x = new Complex(123.456, 78.90); $x->divideInto(-987.654); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->divideInto(new Complex(0, 1)); echo $x, PHP_EOL; $x = new Complex(-987.654, -32.1); $x->divideInto(new Complex(0, -1)); echo $x, PHP_EOL;