From 07632aad9d3c7143e687bbb9ff11937e4d65492a Mon Sep 17 00:00:00 2001
From: Utkarsh1520 <72489678+Utkarsh1520@users.noreply.github.com>
Date: Fri, 16 Oct 2020 21:00:00 +0530
Subject: [PATCH] Multiplication Of 3D Matrice.

---
 3D.java | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 3D.java

diff --git a/3D.java b/3D.java
new file mode 100644
index 000000000..7344fbb45
--- /dev/null
+++ b/3D.java
@@ -0,0 +1,49 @@
+public static void main(String[] args) {
+    Scanner getIt = new Scanner(System.in);
+    System.out.println("Input 1 integer n: ");
+    int n = getIt.nextInt();
+    if (n > 0){
+        final double M[][][] = new double[n][n][n];
+        for (int i = 0; i < n; i++)
+            for (int j = 0; j < n; j++)
+                for (int k = 0; k < n; k++)
+                    M[i][j][k] = 3.0;
+        System.out.println("Input 1 integer p: ");
+        int p = getIt.nextInt();
+        if(p > 0){
+          for(int q = 1; q <= p; q++){
+              for (int i = 0; i < n; i++){
+                  for (int j = 0; j < n; j++){
+                      for (int k = 0; k < n; k++){
+                          System.out.printf("%f ", Math.pow(matrixMult(M[i], M[i])[j][k], q));
+                      }
+                      System.out.println("\n");
+                  }
+
+              }
+              System.out.println("xxxxxxxxxxxxxxxxxxxxx");
+          }
+        }
+        else{
+            System.out.println("Woops, you entered a negative p.");
+        }
+    }
+    else{
+        System.out.println("Woops, you entered a negative n.");
+    }
+}
+
+public static double[][] matrixMult(double a[][], double b[][]) {   
+    int aRows = a.length; 
+    int aCols = a[0].length; 
+    int bCols = b[0].length;
+    double[][] result = new double[aRows][bCols];   
+    for(int i = 0; i < aRows; i++){ 
+        for(int j = 0; j < bCols; j++){ 
+            for(int k = 0; k < aCols; k++){ 
+                result[i][j] += a[i][k] * b[k][j];      
+                }
+            }  
+        }   
+    return result;
+}