Kelvin's Octave Assignment: Difference between revisions

Latest revision as of 20:45, 3 October 2010

x = A\b solves the equation Ax=b

For example, this will solve and print solutions for the equations:

$1\times x1+2\times x2+3\times x3=55$

$4\times x1+5\times x2+6\times x3=20$

$7\times x1+8\times x2+9\times x3=42$

clear all
close all
A=[1,2,3
   4,5,6
   7,8,9];
b=[55
   20
   42];
result = A\b;
x1=result(1)
x2=result(2)
x3=result(3)

@@ Line 1: / Line 1: @@
 ==Solve Linear System of EQ's with Octave==
+x = A\b solves the equation ''A'''''x'''='''b'''
-This will solve and print solutions for the equations:
+For example, this will solve and print solutions for the equations:
-<math>x1+2*x2+3*x3=1</math>
-<math>4*x1+5*x2+6*x3=2</math>
+'''<math>1 \times x1+2 \times x2+3 \times x3=55</math>'''
-<math>7*x1+8*x2+9*x3=3</math>
+'''<math>4 \times x1+5 \times x2+6 \times x3=20</math>'''
+'''<math>7 \times x1+8 \times x2+9 \times x3=42</math>'''
@@ Line 15: / Line 17: @@
 ,5,6
 ,8,9];
- b=[1
+ b=[55
 ];
  result = A\b;
  x1=result(1)