Implement simple calculator with basic operations

Simple_calc.c

@@ -0,0 +1,51 @@
+/*
+ * Simple Calculator Program
+ * This program performs basic arithmetic operations: addition, subtraction,
+ * multiplication, and division based on user input.
+ */ 
+#include <stdio.h>
+
+int main() {
+    double num1, num2;
+    char operator;
+    char choice;
+
+    do {
+    // Ask the user for input
+    printf("Enter first number: ");
+    scanf("%lf", &num1);
+
+    printf("Enter second number: ");
+    scanf("%lf", &num2);
+
+    printf("Enter an operator (+, -, *, /): ");
+    scanf(" %c", &operator); // space before %c helps catch any stray newline characters
+
+    // Perform the selected operation
+    switch (operator) {
+        case '+':
+            printf("Result: %.2lf\n", num1 + num2);
+            break;
+        case '-':
+            printf("Result: %.2lf\n", num1 - num2);
+            break;
+        case '*':
+            printf("Result: %.2lf\n", num1 * num2);
+            break;
+        case '/':
+            if (num2 != 0)
+                printf("Result: %.2lf\n", num1 / num2);
+            else
+                printf("Error: Division by zero is not allowed.\n");
+            break;
+        default:
+            printf("Invalid operator.\n");
+    }
+    // Ask if the user wants to perform another calculation
+    printf("Do you want to perform another calculation? (y/n): ");
+    scanf(" %c", &choice);
+    num1 = num2 = 0; // Reset numbers for next calculation
+    } while (choice == 'y' || choice == 'Y');
+    printf("Thank you for using the calculator. Goodbye!\n");
+    return 0;
+}