my solution is in that link(adsbygoogle = window.adsbygoogle || []).push({});

http://img246.imageshack.us/my.php?image=img8267rf4kq1.jpg

i solved it using that method

i want to transform a matrix from a standart basis to basis B

A-out old matrix

X- the old basis

Y-the new basis

S-the transformation matrix

S^-1 -its inverse

N-resolt

i did

Y|X>>>I|S

S|I=I|S^-1

N=S*A*S^-1

the problem is with the solution that i was given

but the problem is that the solution that i was given is totaly different

http://img352.imageshack.us/my.php?image=45865659to7.jpg

A-old matrix

B-new basis

N-answer

i noticed that he takes

B|A>>> I|N

thats totaly different i cant see any logic in that

and he got a different answer from me

and he got full points for that

that gives me a great dought in my method

can you please tell were am i wrong??

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Trasformation theory question

**Physics Forums | Science Articles, Homework Help, Discussion**