30 lines
1009 B
C#
30 lines
1009 B
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace YLErp.Helpers
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{
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public static class CalculateHelper
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{
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/// <summary>
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/// 计算复利的函数
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/// </summary>
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/// <param name="principal">本金</param>
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/// <param name="rate">年利率</param>
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/// <param name="time">投资时间（天）</param>
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/// <returns>复利总额</returns>
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public static double CompoundInterest(double principal, double rate, int time,int annualDays=365)
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{
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double dailyRate = rate / (double)annualDays;
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// 计算复利公式中的指数部分
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double exponent = dailyRate * time;
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// 利用指数函数计算复利总额
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double total = principal * Math.Pow(1 + exponent, time / (double)annualDays);
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// 计算复利总额（保留两位小数）
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return Math.Round(total, 2);
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}
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}
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}
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