Dadas dos rectas con coeficientes de sus ecuaciones a1x + b1y + c1 = 0 y a2x + b2y + c2 = 0 respectivamente, la tarea es comprobar si las rectas son idénticas o no.
Ejemplos:
Entrada: a1 = -2, b1 = 4, c1 = 3, a2 = -6, b2 = 12, c2 = 9
Salida: Las rectas dadas son idénticas
Entrada: a1 = 12, b1 = 3, c1 = 8, a2 = 7, b2 = -12, c2 = 0
Salida: Las líneas rectas dadas no son idénticas
Enfoque :
- Dadas las ecuaciones,
a1x + b1y + c1 = 0
a2x + b2y + c2 = 0
- al convertirlos a la forma pendiente-intersección, obtenemos
y = (-a1/b1)x +(-c1/b1)
y = (-a2/b2)x +(-c2/b2)
- ahora, si las líneas son idénticas, entonces la pendiente y las intersecciones deben ser iguales,
entonces,
-a1/b1 = -a2/b2
o, a1/a2 = b1/b2
también,
-c1/b1 = -c2/b2
entonces, c1 /c2 = b1/b2
- Entonces, si dos líneas rectas dadas son idénticas, entonces sus coeficientes deberían ser proporcionales.
A continuación se muestra la implementación del enfoque anterior.
C++
// C++ program to check if // given two straight lines // are identical or not #include <bits/stdc++.h> using namespace std; // Function to check if they are identical void idstrt(double a1, double b1, double c1, double a2, double b2, double c2) { if ((a1 / a2 == b1 / b2) && (a1 / a2 == c1 / c2) && (b1 / b2 == c1 / c2)) cout << "The given straight" << " lines are identical" << endl; else cout << "The given straight" << " lines are not identical" << endl; } // Driver Code int main() { double a1 = -2, b1 = 4, c1 = 3, a2 = -6, b2 = 12, c2 = 9; idstrt(a1, b1, c1, a2, b2, c2); return 0; }
Java
// Java program to check if // given two straight lines // are identical or not class GFG { // Function to check if they are identical static void idstrt(double a1, double b1, double c1, double a2, double b2, double c2) { if ((a1 / a2 == b1 / b2) && (a1 / a2 == c1 / c2) && (b1 / b2 == c1 / c2)) System.out.println( "The given straight" +" lines are identical"); else System.out.println("The given straight" + " lines are not identical"); } // Driver Code public static void main(String[] args) { double a1 = -2, b1 = 4, c1 = 3, a2 = -6, b2 = 12, c2 = 9; idstrt(a1, b1, c1, a2, b2, c2); } } // This code has been contributed by 29AjayKumar
Python3
# Python3 program to check if # given two straight lines # are identical or not # Function to check if they are identical def idstrt(a1, b1, c1, a2, b2, c2): if ((a1 // a2 == b1 // b2) and (a1 // a2 == c1 // c2) and (b1 // b2 == c1 // c2)): print("The given straight lines", "are identical"); else: print("The given straight lines", "are not identical"); # Driver Code a1, b1 = -2, 4 c1, a2 = 3,-6 b2, c2 = 12,9 idstrt(a1, b1, c1, a2, b2, c2) # This code is contributed # by mohit kumar
C#
// C# program to check if // given two straight lines // are identical or not using System; class GFG { // Function to check if they are identical static void idstrt(double a1, double b1, double c1, double a2, double b2, double c2) { if ((a1 / a2 == b1 / b2) && (a1 / a2 == c1 / c2) && (b1 / b2 == c1 / c2)) Console.WriteLine( "The given straight" +" lines are identical"); else Console.WriteLine("The given straight" + " lines are not identical"); } // Driver Code public static void Main(String[] args) { double a1 = -2, b1 = 4, c1 = 3, a2 = -6, b2 = 12, c2 = 9; idstrt(a1, b1, c1, a2, b2, c2); } } // This code contributed by Rajput-Ji
PHP
<?php // PHP program to check if // given two straight lines // are identical or not // Function to check if they are identical function idstrt($a1, $b1, $c1, $a2, $b2, $c2) { if (($a1 / $a2 == $b1 / $b2) && ($a1 / $a2 == $c1 / $c2) && ($b1 / $b2 == $c1 / $c2)) echo "The given straight lines are identical","\n"; else echo "The given straight lines are not identical","\n"; } // Driver Code $a1 = -2; $b1 = 4; $c1 = 3; $a2 = -6; $b2 = 12; $c2 = 9; idstrt($a1, $b1, $c1, $a2, $b2, $c2); // This code is contributed by Ryuga ?>
Javascript
<script> // javascript program to check if // given two straight lines // are identical or not // Function to check if they are identical function idstrt(a1 , b1, c1 , a2, b2 , c2) { if ((a1 / a2 == b1 / b2) && (a1 / a2 == c1 / c2) && (b1 / b2 == c1 / c2)) document.write( "The given straight" +" lines are identical"); else document.write("The given straight" + " lines are not identical"); } // Driver Code var a1 = -2, b1 = 4, c1 = 3, a2 = -6, b2 = 12, c2 = 9; idstrt(a1, b1, c1, a2, b2, c2); // This code contributed by Princi Singh </script>
Producción:
The given straight lines are identical
Complejidad de tiempo: O(1)
Espacio Auxiliar: O(1)
Publicación traducida automáticamente
Artículo escrito por IshwarGupta y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA