IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => IGCSE/ GCSE => Reference Material => Topic started by: gaurav95 on May 14, 2010, 03:24:38 pm

Title: Matrix Calculation
Post by: gaurav95 on May 14, 2010, 03:24:38 pm: How to do them on calcsssss

Tell fast........
Title: Re: Matrix Calculation
Post by: Vin on May 14, 2010, 03:33:22 pm: i'd seen a thread .. gimme 2mins .. ;)
Title: Re: Matrix Calculation
Post by: Ghost Of Highbury on May 14, 2010, 03:35:07 pm: to multiply 2 matrices --> $A=\begin{pmatrix} 1 & 2\\ 3 & 4 \end{pmatrix}$

$B=\begin{pmatrix} 5 & 6 7 & 8 \end{pmatrix}$

Do the Following using ur Fx-991MS

1. Press "Mode" 3 times
2. Press "2"
3. Press "Shift"
4. Press "4"
5. Press "1"
6. Press "1"
(mXn) is the order of matrix, 'm' is asked now ; as "A" is a 2X2 matrix m=2
7. Press "2"
8. Perss "="
now the value of 'n' is asked
9. Press "2"
10. "Press "="

Now type in the values and press "=" after every value. Press "1" and then "=" and so on for the rest. [Order: 1,2,3,4]

11. Press "AC"

Repeat the same instructions to define the matrix "B". Dont 4get to press "2" in the 6th step because its "B" matrix now.

AFter you have done defining both the matrices.

Do this to multiply them.

Press "Shift" ; "4" ; "3" ; "1" ; "multiplication sign" ; "Shift" ; "4" ; "3" ; "2" ; "="

Use the arrow keys to navigate and discover the new values in the "Answer Matrix"

Good luck.
Title: Re: Matrix Calculation
Post by: Vin on May 14, 2010, 03:36:18 pm: pretty fast .. i almost had it .. =P
Title: Re: Matrix Calculation
Post by: Ghost Of Highbury on May 14, 2010, 03:37:25 pm: Quote from: ~VIN1094~ on May 14, 2010, 03:36:18 pm
pretty fast .. i almost had it .. =P

lol, i knew where it was, because i had ritten it..
Title: Re: Matrix Calculation
Post by: Vin on May 14, 2010, 03:41:09 pm: yea .. sad i dont hav tht type of calci .. :-\ but i feel calculating it manually is easier .. by the looks of the steps .. :o

guess it becomes easy as u practice on a calci
Title: Re: Matrix Calculation
Post by: gaurav95 on May 14, 2010, 03:50:00 pm: Quote from: A@di on May 14, 2010, 03:35:07 pm
to multiply 2 matrices --> $A=\begin{pmatrix} 1 & 2\\ 3 & 4 \end{pmatrix}$

$B=\begin{pmatrix} 5 & 6 7 & 8 \end{pmatrix}$

Do the Following using ur Fx-991MS

1. Press "Mode" 3 times
2. Press "2"
3. Press "Shift"
4. Press "4"
5. Press "1"
6. Press "1"
(mXn) is the order of matrix, 'm' is asked now ; as "A" is a 2X2 matrix m=2
7. Press "2"
8. Perss "="
now the value of 'n' is asked
9. Press "2"
10. "Press "="

Now type in the values and press "=" after every value. Press "1" and then "=" and so on for the rest. [Order: 1,2,3,4]

11. Press "AC"

Repeat the same instructions to define the matrix "B". Dont 4get to press "2" in the 6th step because its "B" matrix now.

AFter you have done defining both the matrices.

Do this to multiply them.

Press "Shift" ; "4" ; "3" ; "1" ; "multiplication sign" ; "Shift" ; "4" ; "3" ; "2" ; "="

Use the arrow keys to navigate and discover the new values in the "Answer Matrix"

Good luck.

Thanks a lot............