Calculates a monthly loan payment by defining a custom function with the standard amortization formula, showcasing a practical, real-world use case.

ID: 1267

See: uCalc Fast Math Parser 
				
					using uCalcSoftware;

var uc = new uCalc();
// Define a function for the standard loan payment formula
uc.DefineFunction("LoanPmt(rate, nper, pv) = Int((rate * pv) / (1 - (1 + rate)^-nper)*100)/100");

// Define variables for the calculation
uc.DefineVariable("monthly_rate = 0.05 / 12"); // 5% annual rate
uc.DefineVariable("periods = 30 * 12");      // 30 years
uc.DefineVariable("loan_amount = 200000");   // $200,000

Console.WriteLine(uc.EvalStr("LoanPmt(monthly_rate, periods, loan_amount)"));
				
			
1073.64
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					#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

int main() {
   uCalc uc;
   // Define a function for the standard loan payment formula
   uc.DefineFunction("LoanPmt(rate, nper, pv) = Int((rate * pv) / (1 - (1 + rate)^-nper)*100)/100");

   // Define variables for the calculation
   uc.DefineVariable("monthly_rate = 0.05 / 12"); // 5% annual rate
   uc.DefineVariable("periods = 30 * 12");      // 30 years
   uc.DefineVariable("loan_amount = 200000");   // $200,000

   cout << uc.EvalStr("LoanPmt(monthly_rate, periods, loan_amount)") << endl;
}
				
			
1073.64
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					Imports System
Imports uCalcSoftware
Public Module Program
   Public Sub Main()
      Dim uc As New uCalc()
      '// Define a function for the standard loan payment formula
      uc.DefineFunction("LoanPmt(rate, nper, pv) = Int((rate * pv) / (1 - (1 + rate)^-nper)*100)/100")
      
      '// Define variables for the calculation
      uc.DefineVariable("monthly_rate = 0.05 / 12") '// 5% annual rate
      uc.DefineVariable("periods = 30 * 12")      '// 30 years
      uc.DefineVariable("loan_amount = 200000")   '// $200,000
      
      Console.WriteLine(uc.EvalStr("LoanPmt(monthly_rate, periods, loan_amount)"))
   End Sub
End Module
				
			
1073.64
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