Discussion:  All Tools in Calculus on TI Calculator 
Topic:  Programming TI89 (Matrix to solve for unknowns for dynamics class) 
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Subject:  Programming TI89 (Matrix to solve for unknowns for dynamics class) 
Author:  yeah001054 
Date:  Feb 9 2008 
I just created 3 matrix tables which are named
a23 <(2x3)
a34 <(3x4)
a45 <(4x5)
I also want to create a function for that
m2(...),m3(...),m4(...)
when i wrote the m2..m for matrix..2 for 2 unknowns,
I need to renew the table a23

Math question
solve for x,y
x+y=2
2x+3y=5
easy>>x=1,y=1
i know it's easy
but for solving 5 unknowns..u will feel pain to do that..:(

so ax+by=c,dx+ey=f
m2(a,b,c,d,e,f)
change the numbers in tables
I did
[[a,b,c][d,e,f]]> a23
then
rref(a23)
entire code:
m2(a,b,c,d,e,f)
[[a,b,c][d,e,f]]> a23
rref(a23)
DOES NOT WORK :[
I DO NOT KNOW WHY :(
ANYONE CAN HELP ME OUT? :]
THANKS SO MUCH
 
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