*3.3 (Algebra: solve 2 * 2 linear equations) A linear equation can be solved using
Cramer’s rule given in Programming Exercise 1.13. Write a program that prompts
the user to enter a, b, c, d, e, and f and displays the result. If ad - bc is 0, report
that “The equation has no solution.”
import java.util.Scanner; public class ProgrammingEx3_3 { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("Enter a, b, c, d, e, f:"); double a = input.nextDouble(); double b = input.nextDouble(); double c = input.nextDouble(); double d = input.nextDouble(); double e = input.nextDouble(); double f = input.nextDouble(); if (a * d - b * c == 0) { System.out.println("The equation has no solution."); System.exit(0); } double x = (e * d - b * f) / (a * d - b * c); double y = (a * f - e * c) / (a * d - b * c); System.out.print("x is " + x); System.out.println(" and y is " + y); } }
No comments :
Post a Comment