you can wrap your code with while statement that check a user input
received at the end of every calculation you made whether go back to
main menu or not.
pujo
On 7/12/05, Nathan Pinno <[EMAIL PROTECTED]> wrote:
>
> 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
>
> OPTIONS MENU
> 1) Calculate
> 2) Shapes
> 3) Temperature
> 4) Formulas
> 5) Quit
> What option would you like:1
> CALCULATE MENU
> 1) Add
> 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
> CALCULATE MENU
> 1) Add
> 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.
> def main_menu():
> global option
> print "OPTIONS MENU"
> print "1) Calculate"
> print "2) Shapes"
> print "3) Temperature"
> print "4) Formulas"
> print "5) Quit"
> option = input("What option would you like:" )
>
> def cal_menu():
> global cal_opt
> print "CALCULATE MENU"
> print "1) Add"
> 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:" )
>
> def shape_menu():
> global shape_opt
> print "SHAPES MENU"
> 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"
> print "8) Main menu"
> shape_opt = input("What option would you like?" )
>
> def temp_menu():
> 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"
> print "7) Main Menu"
> temp_option = input("Choice: ")
>
> def formula_menu():
> 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"
> print "8) Main menu"
> 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
> main_menu()
> if option == 1:
> cal_menu()
> if cal_opt == 1:
> X = input("First number:" )
> Y = input("Second number:" )
> print X, "+", Y, "= ",X + Y
> cal_menu()
> elif cal_opt == 2:
> X = input("First number:" )
> Y = input("Second number:" )
> print X, "-", Y, "= ",X - Y
> cal_menu()
> elif cal_opt == 3:
> X = input("First number:" )
> Y = input("Second number:" )
> print X, "*", Y, "= ",X * Y
> cal_menu()
> 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
> cal_menu()
> 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
> cal_menu()
> elif cal_opt == 6:
> X = input("First number:" )
> Y = input("Power:" )
> print X, "**", Y, "= ",X**Y
> cal_menu()
> elif cal_opt == 7:
> X = input("Number to be squared:" )
> print "The square root of", X, " = ",X**0.5
> cal_menu()
> elif cal_opt == 8:
> main_menu()
> else:
> print "That's not an option. Try again."
> cal_menu
> elif option == 2:
> shape_menu()
> if shape_opt == 1:
> print "1) Circumference"
> print "2) Area"
> print "3) Shapes Menu"
> op = input("Choice: ")
> if op == 1:
> side = input("Side: ")
> print "Circumference = ",4*side
> shape_menu()
> elif op == 2:
> side = input("Side: ")
> print "Area = ",side**2
> shape_menu()
> elif op == 3:
> shape_menu()
> else:
> print "That's not an option."
> op = input("Choice: ")
> elif shape_opt == 2:
> print "1) Circumference"
> print "2) Area"
> print "3) Shapes Menu"
> d = input("Choice: ")
> if d == 1:
> diameter = input("Diameter: ")
> print "The circumference of the circle is ",diameter*3.14
> shape_menu()
> elif d == 2:
> radius = input("Radius: ")
> print "The area of the circle is ",3.14*(radius**2)
> shape_menu()
> elif d == 3:
> shape_menu()
> else:
> print "That's not an option."
> d = input("Choice: ")
> elif shape_opt == 3:
> print "1) Area"
> print "2) Perimeter"
> print "3) Main menu"
> g = input("Choice: ")
> if g == 1:
> base = input("Base: ")
> altitude = input("Altitude: ")
> print "The area of the rectangle is: ",base*altitude
> shape_menu()
> elif g == 2:
> base = input("Base: ")
> altitude = input("Altiutude: ")
> print "The perimeter of the rectangle is:
> ",(2*base)+(2*altitude)
> shape_menu()
> elif g == 3:
> shape_menu()
> 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"
> print "4) Shapes Menu"
> 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
> shape_menu()
> 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
> shape_menu()
> elif e == 3:
> base = input("Base: ")
> height = input("Height: ")
> print "The area of the triangle is: ",1/2*base*height
> shape_menu()
> elif e == 4:
> shape_menu()
> 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"
> print "4) Shapes Menu"
> opt = input("Choice: ")
> if opt == 1:
> r = input("Radius: ")
> sl = input("Slant height: ")
> print "The Lateral Area is: ",1/2*(2*3.14*r)*sl
> shape_menu()
> elif opt == 2:
> r = input("Radius: ")
> sl = input("Slant height: ")
> print "The total area is: ",1/2*(2*3.14*r)*sl+(3.14*(r**2))
> shape_menu()
> elif opt == 3:
> height = input("Height: ")
> r = input("Radius: ")
> print "The volume is: ",1/4*(3.14*(r**2))*height
> shape_menu()
> elif opt == 4:
> shape_menu()
> 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"
> print "4) Shape Menu"
> g = input("Choice: ")
> if g == 1:
> r = input("Radius: ")
> height = input("Height: ")
> print "The Lateral Area is: ",(2*3.14*r)*height
> shape_menu()
> elif g == 2:
> r = input("Radius: ")
> height = input("Height: ")
> print "The Total Area is: ",((2*3.14*r)*height)+(2*(3.14*(r**2)))
> shape_menu()
> elif g == 3:
> r = input("Radius: ")
> height = input("Height: ")
> print "The volume is: ",(3.14*(r**2))*height
> shape_menu()
> elif g == 4:
> shape_menu()
> else:
> print "That is not an option!"
> g = input("Choice: ")
> elif shape_opt == 7:
> print "1) Arc Length"
> print "2) Area"
> print "3) Shape Menu"
> h = input("Choice: ")
> if h == 1:
> diam = input("Diameter: ")
> print "The arc length is: ",(3.14*diam)/2
> shape_menu()
> elif h == 2:
> r = input("Radius: ")
> print "The area is: ",(3.14*(r**2))/2
> shape_menu()
> elif h == 3:
> shape_menu
> else:
> print "Sorry, incorrect entry. Please try again."
> h = input("Choice: ")
> elif shape_menu == 8:
> main_menu()
> else:
> print "Sorry, not an option."
> shape_menu()
> elif option == 3:
> temp_menu()
> if temp_option == 1:
> print "Convert degrees Kelvin to degrees Celsius."
> k = input("Degrees Kelvin: ")
> print k-273.16," degrees Celsius"
> temp_menu()
> elif temp_option == 2:
> print "Convert Fahrenheit to Celsius"
> f = input("Degrees Fahrenheit: ")
> print 5/9*(f-32)," degrees Celsius"
> temp_menu()
> elif temp_option == 3:
> print "Convert Celsius to Fahrenheit"
> c = input("Degrees Celsius: ")
> print (9/5*C)+32," degrees Fahrenheit"
> temp_menu()
> elif temp_option == 4:
> print "Convert degrees Celsius to degrees Kelvin"
> c = input("Degrees Celsius: ")
> print c+273.16," degrees Kelvin"
> temp_menu()
> elif temp_option == 5:
> print "Convert degrees Kelvin to Fahrenheit"
> k = input("Degrees Kelvin: ")
> print ((k-273.16)*9/5)+32," degrees Fahrenheit"
> temp_menu()
> elif temp_option == 6:
> print "Convert Fahrenheit to degrees Kelvin"
> f = input("Degrees Fahrenheit: ")
> print (5/9*(f-32))+273.16," degrees Kelvin"
> temp_menu()
> elif temp_option == 7:
> main_menu()
> else:
> print "That's not an option. Please try again"
> temp_menu()
> elif option == 4:
> formula_menu()
> if formula_option == 1:
> p = input("Principal: ")
> r = input("Rate as a decimal: ")
> t = input("Time in years: ")
> print "Interest: ",p*r*t
> formula_menu()
> elif formula_option == 2:
> r = input("Rate: ")
> t = input("Time: ")
> print "Distance: ",r*t
> formula_menu()
> elif formula_option == 3:
> v = input("Velocity: ")
> t = input("Time: ")
> print "Uniform motion: ",v*t
> formula_menu()
> elif formula_option == 4:
> m = input("Mass: ")
> v = input("Velocity: ")
> print "Momentum: ",m*v
> formula_menu()
> elif formula_option == 5:
> as = input("Acceleration speed: ")
> t = input("Time: ")
> print "Uniformly accelerated motion: ",1/2*as*t
> formula_menu()
> 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)
> formula_menu()
> elif formula_option == 7:
> m = input("Mass: ")
> gravity = input("Gravity: ")
> print "Weight: ",m*gravity
> formula_menu()
> elif formula_option == 8:
> main_menu()
> else:
> print "That is not an option."
> formula_menu()
> elif option == 5:
> print "Goodbye!"
> else:
> print "That is not an option. Please choose an option from the menu."
> main_menu()
> print
>
>
> So how do I do it?
>
> Nathan Pinno
> http://www.npinnowebsite.ca/
>
>
> _______________________________________________
> Tutor maillist - Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
>
>
>
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http://mail.python.org/mailman/listinfo/tutor
