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#1 2012-12-14 16:21:27


System of linear equations

I've heard that there are 8 ways to solve system of linear it true ? If it is true what are they?

#2 2012-12-14 19:07:18

bob bundy
Registered: 2010-06-20
Posts: 6,731

Re: System of linear equations

hi Sabbir,

Welcome to the forum.

8 ?  hhmm I can 'start the ball rolling' with

(i) simultaneous equations by elimination

(ii) simultaneous equations by substitution

(iii) matrices

(iv) graph (not really suitable beyond 2 unknowns)

(v) spot the answer by inspection and check it works


Now I've run out for the moment.

Hopefully others can carry on.  smile


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei


#3 2012-12-14 19:43:53

From: Bumpkinland
Registered: 2009-04-12
Posts: 92,227

Re: System of linear equations

Hi Sabbir;

There are probably more ways than that. Determinants, iteration,over relaxation, sor, Newton - Jacobi are a few more.

In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.


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