cli-calculator/main.c

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include "functions.h"

// to compile use "gcc main.c -lm"

int main()
{
    system("clear");
    printf("Welcome to Calculator Collection™.\nPlease select which calculator you would like to use.");
    printf("\n\n  1. Hypotenuse calculator");
    printf("\n  2. Quadratic formula calculator");
    printf("\n  3. Area of a circle");
    printf("\n  4. Matrix");
    printf("\n\n Enter your choice here:_____");
    printf("\033[D");
    printf("\033[D");
    printf("\033[D");

    int userInput;
    scanf("%i", &userInput);

    switch (userInput)
    {
    case 1:
        system("clear");
        printf("\n ~~ Hypotenuse calculator ~~");
        printf("\n\n        /|\n");
        printf("       / |\n");
        printf("  c   /  |\n");
        printf("     /   |   a\n");
        printf("    /    |\n");
        printf("   /_____|\n\n");
        printf("      b\n");

        printf("\nPlease type the length of the triangle below:\n");
        double sideA;
        scanf("%lf", &sideA);
        printf("\nPlease type the width of the triangle:\n");
        double sideB;
        scanf("%lf", &sideB);

        printf("The Hypotnuse is equal to %f.\n", hypotenuse(sideA, sideB));
        break;

    case 2:
        system("clear");
        printf("\n ~~ Quadratic formula calculator ~~\n\n");

        printf("Please enter the value for \"a\":\n");
        double numA;
        scanf("%lf", &numA);
        printf("Please enter the value for \"b\":\n");
        double numB;
        scanf("%lf", &numB);
        printf("Please enter the value for \"c\":\n");
        double numC;
        scanf("%lf", &numC);

        double awn1ptr, awn2ptr;
        quadratic(numA, numB, numC, &awn1ptr, &awn2ptr);

        printf("The zeros are: %f and %f!\n", awn1ptr, awn2ptr);
        break;

    case 3:
        system("clear");
        printf("\n ~~ Area of a circle calculator ~~\n\n");
        printf("        o  o\n     o        o\n    o          o\n    o          o\n     o        o\n        o  o\n");
        printf("\n enter a radius:\n");

        double radius;
        scanf("%lf", &radius);
        printf("The area is %f!\n", areaOfCircle(radius));
        break;

    case 4:

        system("clear");
        printf("\n ~~ matrix *beta* ~~\n\n");
        int numRows;
        int numColumns;
        printf("\nPlease enter the number of rows:");
        scanf("%d", &numRows);
        printf("\nPlease enter the number of columns:");
        scanf("%d", &numColumns);
        buildMatrix(numRows, numColumns);

        break;

    default:
        printf("\n Incorrect input, try again.\n");
    };

    return 0;
};