Tutorial Playlist
132 Lessons1. Introduction to C Tutorial
2. Addition of Two Numbers in C
3. Anagram Program in C
4. Armstrong Number in C
5. Array in C
6. Array of Pointers in C
7. Array of Structure in C
8. C Program to Find ASCII Value of a Character
9. Assignment Operator in C
10. Binary Search in C
11. Binary to Decimal in C
12. Bitwise Operators in C
13. Boolean in C
14. C Compiler for Mac
15. C Compiler for Windows
16. C Function Call Stack
17. C Language Download
18. Operators in C
19. C/C++ Preprocessors
20. C Program for Bubble Sort
21. C Program for Factorial
22. C Program for Prime Numbers
23. C Program for String Palindrome
24. C Program to Reverse a Number
25. Reverse a String in C
26. C string declaration
27. String Input Output Functions in C
28. Calculator Program in C
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29. Call by Value and Call by Reference in C
30. Ceil Function in C
31. Coding Vs. Programming
32. Command Line Arguments in C/C++
33. Comments in C
34. Compilation process in C
35. Conditional Statements in C
36. Conditional operator in the C
37. Constant Pointer in C
38. Constants in C
39. Dangling Pointer in C
40. Data Structures in C
41. Data Types in C
42. Debugging C Program
43. Convert Decimal to Binary in C
44. Define And include in C
45. Difference Between Arguments And Parameters
46. Difference Between Compiler and Interpreter
47. Difference Between If Else and Switch
48. Do While Loop In C
49. Double In C
50. Dynamic Array in C
51. Dynamic Memory Allocation in C
52. Enumeration (or enum) in C
53. Evaluation of Arithmetic Expression
54. Factorial of A Number in C
55. Features of C Language
56. Fibonacci Series Program in C Using Recursion
57. File Handling in C
58. For Loop in C
59. Format Specifiers in C
60. Functions in C
61. Function Pointer in C
62. goto statement in C
63. C Hello World Program
64. Header Files in C
65. Heap Sort in C Program
66. Hello World Program in C
67. History of C Language
68. How to compile a C program in Linux
69. How to Find a Leap Year Using C Programming
70. Identifiers in C
71. If Else Statement in C
72. If Statement in C
73. Implementation of Queue Using Linked List
74. Increment and decrement operators in c
75. Input and Output Functions in C
76. How To Install C Language In Mac
77. Jump Statements in C
78. Lcm of Two Numbers in C
79. Length of an Array in C
80. Library Function in C
81. Linked list in C
82. Logical Operators in C
83. Macros in C
84. Matrix multiplication in C
85. Nested if else statement in C
86. Nested Loop in C
87. One Dimensional Array in C
88. Operator Precedence and Associativity in C
89. Overflow And Underflow in C
90. Palindrome Program in C
91. Pattern Programs in C
92. Pointer to Pointer in C
93. Pointers in C: A Comprehensive Tutorial
94. Pre-increment And Post-increment
95. Prime Number Program in C
96. Program for Linear Search in C
97. Pseudo-Code In C
98. Random Access Files in C
99. Random Number Generator in C
100. Recursion in C
101. Relational Operators in C
102. Simple interest program in C
103. Square Root in C
104. Stack in C
105. Stack Using Linked List in C
106. Static function in C
107. Stdio.h in C
108. Storage Classes in C
109. strcat() in C
110. Strcmp in C
111. Strcpy in C
112. String Comparison in C
113. String Functions in C
114. String Length in C
115. String Pointer in C
116. strlen() in C
117. Structures in C
118. Structure of C Program
119. Switch Case in C
120. C Ternary Operator
121. Tokens in C
122. Toupper Function in C
123. Transpose of a Matrix in C
124. Two Dimensional Array in C
125. Type Casting in C
126. Types of Error in C
127. Unary Operator in C
128. Use of C Language
129. User Defined Functions in C
130. What is Variables in C
131. Is C language case sensitive
132. Fibonacci Series in C
The heart of every software application, even the most sophisticated ones, lies in the efficient execution of fundamental operations like addition, subtraction, multiplication, and division. Let's start by creating a simple calculator program in C. We will gradually advance towards building a complex calculator code in C that can perform scientific calculations too.
C programming is a robust language with diverse applications. One such application is creating a calculator program. The simplicity of the C language and its powerful features like conditional and looping statements make it an ideal choice for such applications.
A calculator program in C using a switch statement is a classic example that illustrates the usage of switch cases for different mathematical operations.
Here is the code snippet for a simple calculator program using the switch statement:
#include<stdio.h> |
In this code:
In programming, an algorithm is a step-by-step procedure to solve a specific problem. Writing an effective algorithm is the cornerstone of successful programming.
For our calculator program in C, the algorithm can be broken down into the following steps:
1. Initialisation: Define and initialise the variables that we will use to hold the numbers for calculation (typically, these are integer or float variables), and the variable to hold the user's choice of operation.
2. Input from User: Request the user to input two numbers. Using scanf(), we read these numbers and store them in our initialised variables.
3. Display Options: We provide a menu to the user, outlining the different operations they can choose from. For a simple calculator, these are typically - 1 for addition, 2 for subtraction, 3 for multiplication, and 4 for division.
4. Capture Choice: Using scanf(), we capture the user's choice and store it in our choice variable.
5. Perform Calculation: Based on the user's choice, we perform the corresponding mathematical operation. This is where control statements come into play. We can use either a switch or if-else statement to check the user's choice and perform the appropriate calculation. For instance, if the user's choice is 1 (Addition), we add the two input numbers.
6. Division Exception: If the operation is a division, we include an exception-handling scenario to handle division by zero, as this operation is undefined.
7. Output the Result: After the calculation, we output the result using printf(). If the user has made an invalid choice (i.e., not between the ones provided), we print an error message.
8. Repetition or Exit: Finally, for programs using a do-while loop, we ask the user if they wish to continue with another calculation or exit the program. If the user wishes to continue, we go back to step 2; otherwise, we exit the program.
By following this algorithm, we ensure that our calculator program is interactive, user-friendly, and robust.
Now that we've understood the basics of creating a calculator program in C, let's explore different ways of implementing it:
We've already seen how to use a switch statement to create a calculator program above. The switch statement is excellent when you have multiple cases to handle, and each corresponds to an operation in the calculator program.
While the switch statement is great for multiple choices, the if-else statement provides users with more flexibility and control. Here's a calculator program in C using the if else if statement:
#include<stdio.h> |
This code works similarly to the calculator program in C using switch statement one, but instead of a switch statement, it uses an if-else if structure to check the user's choice and perform the corresponding operation. It gives you more flexibility and control over your code, but it can become cluttered if you have a lot of choices.
Here, we make our calculator program in C more interactive by running it continuously using a do-while loop until the user wishes to exit.
#include<stdio.h> |
In this code, we use a do-while loop to make the calculator program more interactive. It runs continuously, performing operations as per the user's choice until the user decides to exit. After each calculation, it asks the user whether they want to continue or not. If the user inputs Y or y, it repeats the calculations; otherwise, it exits the loop and ends the program.
Developing a calculator program in C is a valuable exercise in understanding control statements and user input in C. We discussed different ways of creating a calculator program in C, using switch statements, if-else statements, and loops.
As we progress from a simple calculator to a scientific one, the complexity of code increases, and so does the learning. Embrace this complexity, and you'll be well on your way to becoming a proficient C programmer.
Get hands-on with these concepts and many more with upGrad's Master of Science with Computer Science Program. Try it out today to learn C programming from industry experts and become job-ready!
1. Why is C used for creating calculator programs?
C is a powerful, efficient, and widely-used language that provides control structures like if, else, switch, and loops, making it suitable for calculator programs.
2. How does a calculator program work?
A calculator program works by taking input from the user, applying the mathematical operation chosen by the user on the inputs, and providing the output.
3. What is the difference between using a switch and if-else for the calculator program?
Both switch and if-else can be used for creating a calculator program. While the switch is easier and cleaner for multiple choices, if-else gives more flexibility and control over the code.
4. How to handle division by zero in the calculator program?
In our calculator program, before performing the division, we check if the divisor is zero. If it is, we print an error message instead of performing the division to avoid runtime errors.
5. Can the calculator program perform scientific calculations?
The basic calculator program we've created can perform only basic operations. However, it can be extended to perform scientific calculations like square root, power, factorial, etc. by adding more cases in the switch statement.
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upGrad does not grant credit; credits are granted, accepted or transferred at the sole discretion of the relevant educational institution offering the diploma or degree. We advise you to enquire further regarding the suitability of this program for your academic, professional requirements and job prospects before enr...