Javascript執行三角函數繪圖

Javascript在網頁就可以執行不需要開啟Spyder

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  1. George2025年7月2日 上午9:16

    期中考前沒做https://ktglgfk.blogspot.com/2025/04/pythoncsv.html
    https://ktglgfk.blogspot.com/2025/05/buttonbordergreen-5px-solidborder.html

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def pv(r,n,m,f):#侯政宇函數參數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('侯政宇python tkinter') root.geometry('600x300')#寬度width改成600 canvas = tk.Canvas(root, width=600, height=300) # 加入 Canvas 畫布 canvas.pack() x, y = 0, 0 canvas.create_line(0, 200, 500, 200, width=3,fill='black') for x in range(1, 200): x1 = x+1 y1 = 200 - pv(x1,n,m,f)*200 canvas.create_line(x, y, x1, y1, width=5,fill='blue') canvas.pack() x = x1 y = y1 root.mainloop()
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months = dict() for year in range(2007,2026): months[year]=[str(year*100+month) for month in range(1,13)] count, sum, sumSq, mean, stdev = dict(), dict(), dict(), dict(), dict() for firm in firms: for year in range(2007, 2026): t = (firm, year) #元組(公司,年) count[t] = 0 sum[t] = 0.0 sumSq[t] = 0.0 for row in rows: #字典value增加append元素 for firm in firms: if row[0] == firm: for year in range(2007, 2026): t = (firm, year) for month in months[year]: if row[1] == month: count[t] +=1 temp = float(row[8]) sum[t] += temp sumSq[t] += temp*temp for firm in firms: #以下計算各年度月報酬率的平均數與標準差 for year in range(2007, 2026): t = (firm, year) temp1 = count[t] temp2 = sum[t] mean[t] = temp2 / temp1 temp2 = sumSq[t] - temp2 * temp2 / temp1 ...
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侯政宇python運算CSV輸出TKINTER投資風險與報酬Markowitz

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關鍵程式碼 def draw():#按下按鈕button1執行draw canvas.create_line(0,500,700,500,width=3,fill='black',arrow='last') canvas.create_line(10,600,10,5,width=3,fill='black',arrow='last') for firm in firms: t=(firm, year.get()) x = 10+20*stdev[t]*2*3**0.5 #放大20 y = 500 - 10*mean[t]*12 #放大10 dot=canvas.create_oval(x-5,y-5,x+5,y+5,fill='blue') lab=canvas.create_text(x+10,y,text=firm[4:7],anchor=W,font=('微軟中黑體', 20)) def delete():#按下按鈕button2執行delete canvas.delete('all') years=[x for x in range(2007, 2025)] year=IntVar(tk) year.set(years[0]) label = Label(tk, text="年度",font=('Arial',30,'bold'),).pack(side=LEFT) #距離左側 option1 = OptionMenu(tk, year, *years).pack(side=LEFT) button1 = Button(tk, text="練子維繪圖 ",font=('Arial',30,'bold'), command = draw, bg='black',fg='white').pack(side=LEFT) button2 = Button(tk, text="練子維刪除 ...
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