PHP Math_Finance::presentValue Exemples

Exemple #1

Fichier : testMath_Finance.php Projet : hashmode/math_finance

 function testpresentValue()
 {
     // various random calculations
     $this->assertTrue(abs(-4909.073704 - Math_Finance::presentValue(0.08, 20, 500)) < FINANCE_PRECISION);
     $this->assertTrue(abs(-915.941437 - Math_Finance::presentValue(0.03, 5, 200)) < FINANCE_PRECISION);
     $this->assertTrue(abs(-286.821438 - Math_Finance::presentValue(0.29, 7, 100)) < FINANCE_PRECISION);
     $this->assertTrue(abs(-700.0 - Math_Finance::presentValue(0, 7, 100)) < FINANCE_PRECISION);
     // cannot pass negative number of periods
     $this->assertType('object', Math_Finance::presentValue(0.29, -7, 100));
     // cannot pass a type different from 0 and 1
     $this->assertType('object', Math_Finance::presentValue(0.29, 7, 100, 0, 3));
 }