# [Tutor] Giant Calc runs, but need advice on how to make the menu repopup.

Nathan Pinno falcon3166 at hotmail.com
Tue Jul 12 10:11:47 CEST 2005

```It runs but now how do I make it go back to the previous menu (e.g. from Add to Calculate Menu?)

Here is the latest screenshot:

The Giant Calculator

Copyright 2005 Written and debugged by Nathan Pinno

1) Calculate
2) Shapes
3) Temperature
4) Formulas
5) Quit
What option would you like:1
2) Subraction
3) Multiplication
4) Division w/o remainder
5) Division with remaider
6) Exponation
7) Square roots
8) Back to the previous menu.
What option would you like:3
First number:3
Second number:2
3 * 2 =  6
2) Subraction
3) Multiplication
4) Division w/o remainder
5) Division with remaider
6) Exponation
7) Square roots
8) Back to the previous menu.
What option would you like:7

>>>

and the current code:

# This program is designed as a big calculator with functions.

# This first bunch of code is for the various menus. I decided to divide the calculations into seperate sub-menus,
#so that the main menus would not be that long.
global option
print "1) Calculate"
print "2) Shapes"
print "3) Temperature"
print "4) Formulas"
print "5) Quit"
option = input("What option would you like:" )

global cal_opt
print "2) Subraction"
print "3) Multiplication"
print "4) Division w/o remainder"
print "5) Division with remaider"
print "6) Exponation"
print "7) Square roots"
print "8) Back to the previous menu."
cal_opt = input("What option would you like:" )

global shape_opt
print "Important: The figure that is used for pi is 3.14."
print "1) Squares"
print "2) Circles"
print "3) Rectangles"
print "4) Triangles"
print "5) Cones"
print "6) Cylinders"
print "7) Semicircles"
shape_opt = input("What option would you like?" )

global temp_opt
print "1) Convert degrees Kevins to degrees Celsius"
print "2) Contvert Fahrenheit to Celsius"
print "3) Convert Celsius to Fahrenheit"
print "4) Convert Celsius to Kelvins"
print "5) Convert Kelvins to Fahrenheit"
print "6) Convert Fahrenheit to Kelvins"
temp_option = input("Choice: ")

global formula_opt
print "1) Interest"
print "2) Distance"
print "3) Uniform motion"
print "4) Momentum"
print "5) Uniformly accelerated motion"
print "6) Falling bodies"
print "7) Weight"
fourmula_option = input("Choice: ")

#Code for main part of program.
print "The Giant Calculator"
print
print "Copyright 2005 Written and debugged by Nathan Pinno"
print
if option == 1:
if cal_opt == 1:
X = input("First number:" )
Y = input("Second number:" )
print X, "+", Y, "= ",X + Y
elif cal_opt == 2:
X = input("First number:" )
Y = input("Second number:" )
print X, "-", Y, "= ",X - Y
elif cal_opt == 3:
X = input("First number:" )
Y = input("Second number:" )
print X, "*", Y, "= ",X * Y
elif cal_opt == 4:
X = input("First number:" )
Y = input("Second number:" )
if Y == 0:
print "Division by zero ot allowed!"
Y = input("Second number:" )
else:
print X, "/", Y, "= ",X / Y
elif cal_opt == 5:
X = input("First number:" )
Y = input("Second number:" )
if Y == 0:
print "Division by zero ot allowed!"
Y = input("Second number:" )
else:
print X, "/", Y, "= ",X / Y," R ", X % Y
elif cal_opt == 6:
X = input("First number:" )
Y = input("Power:" )
print X, "**", Y, "= ",X**Y
elif cal_opt == 7:
X = input("Number to be squared:" )
print "The square root of", X, " = ",X**0.5
elif cal_opt == 8:
else:
print "That's not an option. Try again."
elif option == 2:
if shape_opt == 1:
print "1) Circumference"
print "2) Area"
op = input("Choice: ")
if op == 1:
side = input("Side: ")
print "Circumference = ",4*side
elif op == 2:
side = input("Side: ")
print "Area = ",side**2
elif op == 3:
else:
print "That's not an option."
op = input("Choice: ")
elif shape_opt == 2:
print "1) Circumference"
print "2) Area"
d = input("Choice: ")
if d == 1:
diameter = input("Diameter: ")
print "The circumference of the circle is ",diameter*3.14
elif d == 2:
print "The area of the circle is ",3.14*(radius**2)
elif d == 3:
else:
print "That's not an option."
d = input("Choice: ")
elif shape_opt == 3:
print "1) Area"
print "2) Perimeter"
g = input("Choice: ")
if g == 1:
base = input("Base: ")
altitude = input("Altitude: ")
print "The area of the rectangle is: ",base*altitude
elif g == 2:
base = input("Base: ")
altitude = input("Altiutude: ")
print "The perimeter of the rectangle is: ",(2*base)+(2*altitude)
elif g == 3:
else:
print "That's not an option."
g = input("Choice: ")
elif shape_opt == 4:
print "1) Right Triangles - Pygathorean Theorum"
print "2) Perimeter"
print "3) Area"
e = input("Choice: ")
if e == 1:
sidea = input("Side A: ")
sideb = input("side B: ")
print "The hypotenuse's length is: ",((sidea**2)+(sideb**2))**0.5
elif e == 2:
sidea = input("Side A: ")
sideb = input("Side B: ")
sidec = input("Side C: ")
print "The Perimeter of the triangle is: ",sidea+sideb+sidec
elif e == 3:
base = input("Base: ")
height = input("Height: ")
print "The area of the triangle is: ",1/2*base*height
elif e == 4:
else:
print "That's not an option! Try again."
e = input("Choice: ")
elif shape_opt == 5:
print "The base and circumference of a cone can be found with the circle formulas, so they aren't found here."
print "1) Lateral Area"
print "2) Total Area"
print "3) Volume"
opt = input("Choice: ")
if opt == 1:
sl = input("Slant height: ")
print "The Lateral Area is: ",1/2*(2*3.14*r)*sl
elif opt == 2:
sl = input("Slant height: ")
print "The total area is: ",1/2*(2*3.14*r)*sl+(3.14*(r**2))
elif opt == 3:
height = input("Height: ")
print "The volume is: ",1/4*(3.14*(r**2))*height
elif opt == 4:
else:
print "That's not an option"
opt = input("Choice: ")
elif shape_opt == 6:
print "1) Lateral Area"
print "2) Total Area"
print "3) Volume"
g = input("Choice: ")
if g == 1:
height = input("Height: ")
print "The Lateral Area is: ",(2*3.14*r)*height
elif g == 2:
height = input("Height: ")
print "The Total Area is: ",((2*3.14*r)*height)+(2*(3.14*(r**2)))
elif g == 3:
height = input("Height: ")
print "The volume is: ",(3.14*(r**2))*height
elif g == 4:
else:
print "That is not an option!"
g = input("Choice: ")
elif shape_opt == 7:
print "1) Arc Length"
print "2) Area"
h = input("Choice: ")
if h == 1:
diam = input("Diameter: ")
print "The arc length is: ",(3.14*diam)/2
elif h == 2:
print "The area is: ",(3.14*(r**2))/2
elif h == 3:
else:
print "Sorry, incorrect entry. Please try again."
h = input("Choice: ")
else:
print "Sorry, not an option."
elif option == 3:
if temp_option == 1:
print "Convert degrees Kelvin to degrees Celsius."
k = input("Degrees Kelvin: ")
print k-273.16," degrees Celsius"
elif temp_option == 2:
print "Convert Fahrenheit to Celsius"
f = input("Degrees Fahrenheit: ")
print 5/9*(f-32)," degrees Celsius"
elif temp_option == 3:
print "Convert Celsius to Fahrenheit"
c = input("Degrees Celsius: ")
print (9/5*C)+32," degrees Fahrenheit"
elif temp_option == 4:
print "Convert degrees Celsius to degrees Kelvin"
c = input("Degrees Celsius: ")
print c+273.16," degrees Kelvin"
elif temp_option == 5:
print "Convert degrees Kelvin to Fahrenheit"
k = input("Degrees Kelvin: ")
print ((k-273.16)*9/5)+32," degrees Fahrenheit"
elif temp_option == 6:
print "Convert Fahrenheit to degrees Kelvin"
f = input("Degrees Fahrenheit: ")
print (5/9*(f-32))+273.16," degrees Kelvin"
elif temp_option == 7:
else:
print "That's not an option. Please try again"
elif option == 4:
if formula_option == 1:
p = input("Principal: ")
r = input("Rate as a decimal: ")
t = input("Time in years: ")
print "Interest: ",p*r*t
elif formula_option == 2:
r = input("Rate: ")
t = input("Time: ")
print "Distance: ",r*t
elif formula_option == 3:
v = input("Velocity: ")
t = input("Time: ")
print "Uniform motion: ",v*t
elif formula_option == 4:
m = input("Mass: ")
v = input("Velocity: ")
print "Momentum: ",m*v
elif formula_option == 5:
as = input("Acceleration speed: ")
t = input("Time: ")
print "Uniformly accelerated motion: ",1/2*as*t
elif formula_option == 6:
gravity = input("Constant acceleration due to gravity: ")
t = input("Time: ")
print "Distance covered by falling body: ",1/2*gravity*(t**2)
elif formula_option == 7:
m = input("Mass: ")
gravity = input("Gravity: ")
print "Weight: ",m*gravity
elif formula_option == 8:
else:
print "That is not an option."
elif option == 5:
print "Goodbye!"
else:
print "That is not an option. Please choose an option from the menu."
print

So how do I do it?

Nathan Pinno
http://www.npinnowebsite.ca/
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