Description: Simple Calculator is a C language-based application used for performing all the simple arithmetic operations like addition, multiplication, division, and subtraction. The application can be made using basic knowledge of C like if-else statements, loops, etc. The functionalities of the application are mentioned below: Addition Subtraction Multiplication Division Logarithmic values Square roots

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#include int main() { char ch; double a,b; printf("Enter operator(+,-,*,/)","enter exit press x:"); scanf("%c",&ch); if(ch=='x') exit(0); printf("Enter two operand:"); scanf("%lf %lf",&a,&b); switch(ch){ //for addition case'+': printf("%lf+%lf=%lf",a,b,a+b); break; //for subtraction case'-': printf("%lf-%lf=%lf",a,b,a-b); break; //for multiplication case'*': printf("%lf*%lf=%lf",a,b,a*b); break; //for subtraction case'/': printf("%lf/%lf=%lf",a,b,a/b); break; default: printf("wrong! unavilable press"); } } Output Enter an operator (+, -, *, /), if want to exit press x: + Enter two first and second operand: 7 8 7.0 + 8.0 = 15.0 Enter an operator (+, -, *, /), if want to exit press x: - Enter two first and second operand: 8 9 8.0 - 9.0 = -1.0 Enter an operator (+, -, *, /), if want to exit press x: * Enter two first and second operand: 8 7 8.0 * 7.0 = 56.0 Enter an operator (+, -, *, /), if want to exit press x: / Enter two first and second operand: 8 3 8.0 / 3.0 = 2.7 Enter an operator (+, -, *, /), if want to exit press x: x

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