Question

ENGR 40 PROGRAMMING ASSIGNMENT MENU-DRIVEN CALCULATOR PROGRAM 

Use a switch statement to build a menu-driven calculator. Your program should ask the user to choose from a list of ten possible functions (square root, square, natural log, common log, e'x yx, 1/x, sin(x), cos(x), and tan(x). Each choice will correspond to an integer -example: (1) square root, (2) square, etec. Once the person has input a function choice then a switch statement will control the flow of the program- ie. the program will branch to the correct function and ask for the function's input. Most function choices will require a single user input while one (yx) will require two user inputs. For the trigonometric functions of sin(x), cos(x), and tan(x) the user will enter the input angle in degrees (though it will need to be converted to radians before using the C++ trig functions). 

User inputs should be bulletproofed against improper inputs (for example, the natural and common logarithm functions are not allowed to have inputs less than or equal to zero). The person using the program should continue to be prompted for function input until he/she enters valid value(s).

Demonstrate your program's operation to the instructor during a lab period (no hard copy submission for this assignment).

Answer 1

OUTPUT:-

1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
1
Enter the no which we want to be a squareroot no:
5.2
The square root of this no=2.28035
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
2
Enter the no which we want to be a square no:
4.2
The square of this no=17.64
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
3
Enter the no for find natural log:
15
The natural log of this no=2.70805
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
4
Enter the no for find common log:
3
The common log of this no=0.477121
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
5
Enter the no for find e^x:
3
The exponent of this no=20.0855
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
6
Enter the no's for find y^x:
3 4
The result is=81
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
7
Enter the no's for find 1/x:
5
The result is=0.2
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
7
Enter the no's for find 1/x:
0
Enter value is equal zero:
Please enter the real value other than 0:
3
The result is=0.333333
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
8
Enter the degree value for find sin(x) :
90
The result is=1
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
9
Enter the degrre value for find cos(x) :
60
The result is=0.500001
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
10
Enter the degrre value for find tan(x) :
60
The result is=1.73205
1.For square root:
2.For square:
3.For natural log:
4.For common log:
5.For e^x:
6.For y^x:
7.For 1/x:
8.For sin(x):
9.For cos(x):
10.For tan(x):
11.Terminate the program:
Enter the choice:
11