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<?php
namespace Nyholm\EffectiveInterest;
/**
* @author Tobias Nyholm <[email protected]>
*/
class Calculator
{
* Get the interest when you know all the payments and their dates. Use this function when you have
* administration fees at the first payment and/or when payments are irregular.
*
* @param int $principal
* @param string $startDate in format 'YYYY-mm-dd'
* @param array $payments array with payment dates and values ['YYYY-mm-dd'=>int]
* @param float $guess A guess what the interest may be. Between zero and one. Example 0.045
* @return float
public function withSpecifiedPayments(int $principal, string $startDate, array $payments, float $guess): float
$principal
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.
$startDate
$payments
$guess
return 0.045;
}
public function withEqualPayments()
// TODO implement NewtonRaphson call.
Nyholm /
effective-interest-rate
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.