计算iPhone的未来价值 [英] calculate Future value in iPhone

问题描述

以下功能将基于iphone的现值，利率和时间段来计算未来价值吗？

Will the following function for calculating Future value based on present value, interest rate and time period work in iphone?

-(float) calcFV: float pv: float interest_rate: float time
{
   float fv, pv, interest_rate, t;

   //pv = 200000.0; // present value
   //i  = 0.012;    // interest rate (1.2%)
   //t  = 5.0;      // time period

   fv = pv * pow (1.0 + interest_rate, time);
   return fv;

}

推荐答案

是的，

尽管您的公式正确，但您仍在声明pv和interest_rate，并将它们作为参数传递。

Despite the fact that your formula is correct, you are declaring pv and interest_rate, as well as passing them in as parameters.

删除声明：

-(float) calcFVFromPresentValue: (float) pv interest_rate: (float) interest_rate time: (float) time
{
    float fv;

    //pv = 200000.0; // present value
    //i  = 0.012;    // interest rate (1.2%)
    //t  = 5.0;      // time period

    fv = pv * pow (1.0 + interest_rate, time);
    return fv;

}

顺便说一句，您的.h文件现在应具有以下内容：

Incidentally, your .h file should now have this:

-(float) calcFVFromPresentValue: (float) pv interest_rate: (float) interest_rate time: (float) time;

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