Revision 1:9e4cb305fb24, committed 2011-10-22

Comitter:

Yo_Robot

Date:

Sat Oct 22 23:20:26 2011 +0000

Parent:

0:63af78c5943c

Child:

2:e3b963c560d8

Commit message:

Added Invert, Determinant.

Changed in this revision

--- a/Matrix.lib	Fri Oct 21 03:35:03 2011 +0000
+++ b/Matrix.lib	Sat Oct 22 23:20:26 2011 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/Yo_Robot/code/Matrix/#589fb80932b5
+http://mbed.org/users/Yo_Robot/code/Matrix/#c0c8f3edd60e

--- a/MatrixMath.lib	Fri Oct 21 03:35:03 2011 +0000
+++ b/MatrixMath.lib	Sat Oct 22 23:20:26 2011 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/Yo_Robot/code/MatrixMath/#eb69bbfb6486
+http://mbed.org/users/Yo_Robot/code/MatrixMath/#c74cdf14aea2

--- a/main.cpp	Fri Oct 21 03:35:03 2011 +0000
+++ b/main.cpp	Sat Oct 22 23:20:26 2011 +0000
@@ -5,7 +5,11 @@
 int main() {
 
     DigitalOut myled(LED1);
+    Timer t;
     
+    t.start();
+ 
+//---
     Matrix myMatrix(3,3);
     Matrix anotherMatrix;
 
@@ -14,7 +18,7 @@
              << 4  << 5  << 6
              << 7  << 8  << 9;
 
-    printf( "\myMatrix \n");
+    printf( "\nmyMatrix \n");
     myMatrix.print();
     printf( "\n" );
 
@@ -50,7 +54,7 @@
 
     // Resize Matrix
     temp.Resize(4,4);
-    printf("\nAdded one Column, one Row to the limitsof myMatrix saved in temp Matrix");
+    printf("\nAdded one Column, one Row to the limitsof myMatrix saved in temp Matrix\n");
     temp.print();
 
     //Delete those new elements, we don't need them anyway.
@@ -63,7 +67,8 @@
     
     // Make room at the begining of Matrix
     Matrix::AddRow( temp, 1 );
-    Matrix::AddColumn( temp, 1 );
+    Matrix::AddCol( temp, 1 );
+    
     printf("\nAdded Just one Row and column to the beginning\n");
     temp.print();
 
@@ -83,7 +88,39 @@
     printf("\nInitial Matrix turned into a single Row\n");
     temp.print();
            
-    // That's all for now!!!
+    /**  Mtrix Math  **/
+    printf("\n Matrix Inverse and Determinant\n");
+    
+    Matrix BigMat( 5, 5 );
+    BigMat   << 1 << 0  << 1 << 1 << 3
+             << 2 << 3  << 4 << 0 << 4
+             << 1 << 6  << 1 << 1 << 2
+             << 1 << 0  << 2 << 1 << 1
+             << 2 << 3  << 4 << 2 << 0;
+
+    printf( "\nBigMat:\n");
+    BigMat.print();
+    printf( "\n" );
+
+    float determ = MatrixMath::det( BigMat );
+
+    printf( "\nBigMat's Determinant is: %f \n", determ);
+    printf( "\n" );
+
+    Matrix myInv = MatrixMath::Inv( BigMat );
+
+    printf( "\nBigMat's Inverse is:\n");
+    myInv.print();
+    printf( "\n" );
+
+//---
+
+
+    t.stop();
+    
+    printf( "\nThe time for all those operations in mbed was : %f seconds\n", t.read() );
+    printf( "\nMost of it is due to printf though in my core i5 takes 100ms with printf() \n" );
+    printf( "\nOnly operations witout any print takes: 0.025 seconds :) \n" );
            
     while(1) {
         myled = 1;