EXCEL的CUMIPMT函数的数学公式是什么(如何计算)? [英] What is the Mathematical formula for CUMIPMT function of EXCEL(how it is calculated)?

问题描述

EXCEL的CUMIPMT函数的数学公式是什么(如何计算)?我想用数学来计算.请帮助

What is the Mathematical formula for CUMIPMT function of EXCEL(how it is calculated)? I want to calculate it mathematically. Please Help

推荐答案

由于Excel不是开放源代码，因此我们无法提供Excel中 CUMIPMT 的实现.

The implementation of CUMIPMT in Excel is impossible for us to provide seeing as Excel is not open-source.

但是，在Google搜索中会显示大量结果，例如Java语言中的此实现，还在Javascript中也使用了href ="https://gist.github.com/fscottfoti/ef5b1785b22fc79ee8ba" rel ="nofollow noreferrer">其他实现，或ddeboer/phpexcel/blob/master/Classes/PHPExcel/Calculation/Financial.php"rel =" nofollow noreferrer> PHPExcel在PHP中的实现.

However numerous results show up in a Google search such as this implementation in Javascript, this other implementation also in Javascript, or PHPExcel's implementation in PHP.

最接近的结果可能是查看Open Office的C ++实现-与Excel的实现非常接近或相同.

The closest result would probably be to look at Open Office's C++ implementation - thats very close or identical to Excel's implementation.

它在上的OpenOffice存储库中可用.GitHub

double SAL_CALL AnalysisAddIn::getCumipmt( double fRate, sal_Int32 nNumPeriods, double fVal,
    sal_Int32 nStartPer, sal_Int32 nEndPer, sal_Int32 nPayType ) THROWDEF_RTE_IAE
{
    double fRmz, fZinsZ;

    if( nStartPer < 1 || nEndPer < nStartPer || fRate <= 0.0 || nEndPer > nNumPeriods  || nNumPeriods <= 0 ||
        fVal <= 0.0 || ( nPayType != 0 && nPayType != 1 ) )
        THROW_IAE;

    fRmz = GetRmz( fRate, nNumPeriods, fVal, 0.0, nPayType );

    fZinsZ = 0.0;

    sal_uInt32  nStart = sal_uInt32( nStartPer );
    sal_uInt32  nEnd = sal_uInt32( nEndPer );

    if( nStart == 1 )
    {
        if( nPayType <= 0 )
            fZinsZ = -fVal;

        nStart++;
    }

    for( sal_uInt32 i = nStart ; i <= nEnd ; i++ )
    {
        if( nPayType > 0 )
            fZinsZ += GetZw( fRate, double( i - 2 ), fRmz, fVal, 1 ) - fRmz;
        else
            fZinsZ += GetZw( fRate, double( i - 1 ), fRmz, fVal, 0 );
    }

    fZinsZ *= fRate;

    RETURN_FINITE( fZinsZ );
}

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