Adding the project initial commit

1 files changed, 132 insertions, 0 deletions

diff --git a/tbc/static/uploads/Hardik/C/newton_raphson.py b/tbc/static/uploads/Hardik/C/newton_raphson.py
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+++ b/tbc/static/uploads/Hardik/C/newton_raphson.py
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+import math             # Need to import math to use the log function
+from Tkinter import *
+import ttk
+import tkMessageBox
+import tkFileDialog
+import os
+import sys
+# Variables that should be noted
+# G = Guess value
+# count = f(x)
+# den = f'(x)
+# Acc = Accuracy input from user
+
+def CheckVals():
+# Define variables as floats - decimal places
+    r = 1
+    if r == 1:
+        try:                            #If any of the variables have errors catch
+            G = float(GuessInp.get())
+            A = float(AInp.get())
+            B = float(BInp.get())
+            Precision = int(AccInp.get())
+            r = 0
+            CalcRoot()
+        except ValueError:
+            tkinter.messagebox.showinfo("Look carefully","Oops, a variable isn't properly set")
+            r = 0
+    
+    return
+            
+def CalcRoot():
+    # Start the while loop
+    G = float(GuessInp.get())
+    A = float(AInp.get())
+    B = float(BInp.get())
+    Precision = int(AccInp.get())
+    Acc = math.pow(0.1,Precision)
+
+    count = Acc+1   # Just so we can get into the while loop (count > Acc)
+    while count > Acc :
+        count = (G*(math.log(A*G)))
+        count = count - B
+        if count > Acc:
+            
+            if count*A < 0: #Value not allowed
+                tkinter.messagebox.showinfo("Look carefully","Calculations will become unstable Pi * a <0")
+                return
+            
+##            if ((math.pow(math.exp(1),-1)/A)*count): #This seems like one of the prerequisites not sure if there is a typing error on the tut
+##                tkinter.messagebox.showinfo("Look carefully","Calculations will become unstable Pi((e^-1)/a)")
+##                return
+            
+            #Actual calculation
+            den =(math.log(A*G))     #This is the derivtive denominator
+            den = den + 1
+            numb = count/den
+            Temp = G - numb          #Guess value minus the calculated numb
+            G = Temp
+            count = (G*(math.log(A*G)))
+            count = count - B
+            
+    button1.pack_forget()           #Hide Calculate button after success
+    GText = StringVar()
+    GText.set("Calculated Root: ")
+    label1 = Label(app, textvariable=GText, height = 4)
+    label1.pack()
+    Roottxt = StringVar(None)
+    Roottxt.set(G)   
+    label7 = Label(app, textvariable=Roottxt)
+    label7.pack()
+    return
+
+
+app = Tk()
+app.title ("Newton Raphson approximation")
+app.geometry('340x550+100+100')
+
+CommText = StringVar()
+CommText.set("Please complete the form and then click calculate")
+label1 = Label(app, textvariable=CommText, height = 4)
+label1.pack()
+
+fxtxt = StringVar()
+fxtxt.set("f(x) = (x * Ln(x * a)) - b\nf'(x) = 1 + Ln(ax)")
+label2 = Label(app, textvariable=fxtxt, height = 4)
+label2.pack()
+
+#Input a
+Atxt = StringVar()
+Atxt.set("a = ")
+label3 = Label(app, textvariable=Atxt, height = 2)
+label3.pack()
+
+A = StringVar(None)
+AInp = Entry(app, textvariable=A)
+AInp.pack()
+
+#Input b
+Btxt = StringVar()
+Btxt.set("b = ")
+label4 = Label(app, textvariable=Btxt, height = 2)
+label4.pack()
+
+B = StringVar(None)
+BInp = Entry(app, textvariable=B)
+BInp.pack()
+
+#Input acc
+DegText = StringVar()
+DegText.set("To what accuracy do you want the root: ")
+label5 = Label(app, textvariable=DegText, height = 4)
+label5.pack()
+
+Acc = StringVar(None)
+AccInp = Entry(app, textvariable=Acc)
+AccInp.pack()
+
+#Input guess
+Guesstxt = StringVar()
+Guesstxt.set("What is your guess of the root")
+label6 = Label(app, textvariable=Guesstxt, height = 4)
+label6.pack()
+
+G = StringVar(None)
+GuessInp = Entry(app, textvariable=G)
+GuessInp.pack()
+
+#Calculation button
+button1 = Button(app, text = "Calculate root", width = 20, command = CheckVals)
+button1.pack(padx = 15,pady = 15)
+
+app.mainloop()