w3resource

PHP Exercises: Print the values of x, y where a, b, c, d, e and f are specified

PHP: Exercise-49 with Solution

Write a PHP program which solve the equation:
ax+by=c
dx+ey=f
Print the values of x, y where a, b, c, d, e and f are given.

Input:
a,b,c,d,e,f separated by a single space.
(-1,000 ≤ a,b,c,d,e,f ≤ 1,000)

Sample Solution: -

PHP Code:

<?php
  function to_f($e) {
    return (float)$e;
  } 
  while($line = fgets(STDIN)) {
    $a = explode(" ", $line);
    $a = array_map("to_f", $a);
    $x = ($a[2]*$a[4]-$a[1]*$a[5])/($a[0]*$a[4]-$a[3]*$a[1]);
    $y = ($a[2]*$a[3]-$a[0]*$a[5])/($a[1]*$a[3]-$a[0]*$a[4]);
    print("Values of x and y:\n");
    printf("%.3f %.3f\n", $x, $y);
  }
?>

Sample Output: 

Values of x and y:
-1.684 2.737

Flowchart:

Flowchart: Check whether three given lengths of three sides form a right triangle

PHP Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a PHP program to check whether three given lengths (integers) of three sides form a right triangle. Print "Yes" if the given sides form a right triangle otherwise print "No".
Next: Write a PHP program to compute the amount of the debt in n months.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.

PHP: Tips of the Day

Returns all elements in an array except for the first one

Example:

<?php
function tips_tail($items)
{
  return count($items) > 1 ? array_slice($items, 1) : $items;
}

print_r(tips_tail([1, 5, 7]));
?>

Output:

Array
(
    [0] => 5
    [1] => 7
)