@@ -35,7 +35,7 @@ discard block  | 
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| 35 | 35 |      { | 
                                                        
| 36 | 36 | list($values, $days) = $this->preparePayments($principal, $startDate, $payments);  | 
                                                        
| 37 | 37 | |
| 38 | -        $fx = function ($x) use ($days, $values) { | 
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| 38 | +        $fx = function($x) use ($days, $values) { | 
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| 39 | 39 | $sum = 0;  | 
                                                        
| 40 | 40 |              foreach ($days as $idx => $day) { | 
                                                        
| 41 | 41 | $sum += $values[$idx] * pow(1 + $x, ($days[0] - $day) / 365);  | 
                                                        
@@ -44,7 +44,7 @@ discard block  | 
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| 44 | 44 | return $sum;  | 
                                                        
| 45 | 45 | };  | 
                                                        
| 46 | 46 | |
| 47 | -        $fdx = function ($x) use ($days, $values) { | 
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| 47 | +        $fdx = function($x) use ($days, $values) { | 
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| 48 | 48 | $sum = 0;  | 
                                                        
| 49 | 49 |              foreach ($days as $idx => $date) { | 
                                                        
| 50 | 50 | $sum += (1 / 365) * ($days[0] - $date) * $values[$idx] * pow(1 + $x, (($days[0] - $date) / 365) - 1);  | 
                                                        
@@ -68,11 +68,11 @@ discard block  | 
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| 68 | 68 | */  | 
                                                        
| 69 | 69 | public function withEqualPayments(int $a, int $p, int $n, float $i): float  | 
                                                        
| 70 | 70 |      { | 
                                                        
| 71 | -        $fx = function ($i) use ($a, $p, $n) { | 
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| 71 | +        $fx = function($i) use ($a, $p, $n) { | 
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| 72 | 72 | return $p - $p * pow(1 + $i, -1 * $n) - $i * $a;  | 
                                                        
| 73 | 73 | };  | 
                                                        
| 74 | 74 | |
| 75 | -        $fdx = function ($i) use ($a, $p, $n) { | 
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| 75 | +        $fdx = function($i) use ($a, $p, $n) { | 
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| 76 | 76 | return $n * $p * pow(1 + $i, -1 * $n - 1) - $a;  | 
                                                        
| 77 | 77 | };  | 
                                                        
| 78 | 78 | |