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PATH: home / lab2454c / tripvare.com / vendor / phpoffice / phpspreadsheet / src / PhpSpreadsheet / Calculation / MathTrig

<?php

namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig;

use PhpOffice\PhpSpreadsheet\Calculation\Exception;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;

class SeriesSum
{
    /**
     * SERIESSUM.
     *
     * Returns the sum of a power series
     *
     * @param mixed $x Input value
     * @param mixed $n Initial power
     * @param mixed $m Step
     * @param mixed[] $args An array of coefficients for the Data Series
     *
     * @return float|string The result, or a string containing an error
     */
    public static function evaluate($x, $n, $m, ...$args)
    {
        try {
            $x = Helpers::validateNumericNullSubstitution($x, 0);
            $n = Helpers::validateNumericNullSubstitution($n, 0);
            $m = Helpers::validateNumericNullSubstitution($m, 0);

// Loop through arguments
            $aArgs = Functions::flattenArray($args);
            $returnValue = 0;
            $i = 0;
            foreach ($aArgs as $argx) {
                if ($argx !== null) {
                    $arg = Helpers::validateNumericNullSubstitution($argx, 0);
                    $returnValue += $arg * $x ** ($n + ($m * $i));
                    ++$i;
                }
            }
        } catch (Exception $e) {
            return $e->getMessage();
        }

return $returnValue;
    }
}

[-] Roman.php [edit]
[-] MatrixFunctions.php [edit]
[-] Absolute.php [edit]
[-] Floor.php [edit]
[-] Angle.php [edit]
[+] ..
[-] Combinations.php [edit]
[-] Gcd.php [edit]
[-] Round.php [edit]
[-] IntClass.php [edit]
[-] SeriesSum.php [edit]
[-] Sign.php [edit]
[-] Factorial.php [edit]
[-] Subtotal.php [edit]
[-] Arabic.php [edit]
[-] Sum.php [edit]
[-] Exp.php [edit]
[-] Logarithms.php [edit]
[-] Lcm.php [edit]
[-] Operations.php [edit]
[-] Helpers.php [edit]
[-] Base.php [edit]
[-] Sqrt.php [edit]
[-] Trunc.php [edit]
[+] Trig
[-] Ceiling.php [edit]
[-] Random.php [edit]
[-] SumSquares.php [edit]