江珈榛 python自訂函數EXCEL PV和繪圖
def pv(r,n,m,f):#劉任昌函數參數r,n,m,f p = m/r*(1 - 1/(1+r)**n)+f/(1+r)**n return p#執行函數的結果傳回去 n=float(input('期數: '))#要計算轉為實數real nubers m=float(input('收付: '))#浮點點float f=float(input('終值: ')) for i in range(1,10):#迴圈 r = i*0.01 x=pv(r,n,m,f) print('利率 ', r ,'價格 ', x) import tkinter as tk#輸入tkinter繪圖 root = tk.Tk() root.title('江珈榛python tkinter') root.geometry('600x600')#寬度width改成600 canvas = tk.Canvas(root, width=600, height=600) # 加入 Canvas 畫布 canvas.pack() x, y = 0, 0 canvas.create_line(0, 400, 500, 400, width=5,fill='black') canvas.create_line(5, 0, 5, 400, width=5,fill='black') for x in range(1, 400): x1 = x+1 y1 = 400 - pv(x1,n,m,f)*400 canvas.create_line(x, y, x1, y1, width=5,fill='blue') canvas.pack() x = x1 y = y1 root.mainloop()
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