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How do you do matrix math?

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Nicholas Deosaran
Nicholas Deosaran on 15 Sep 2020
Answered: KSSV on 15 Sep 2020
Hey all,
How can you develop a 3 x 3 matrix with elements ranging from 1 to 9. Then perform the calculation that Add 40 to it, divide element-wise by 7, subtract 2 from it, take the square root of the result then take the exponential of that. Do all thismath in one line of code.

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Nicholas Deosaran
Nicholas Deosaran on 15 Sep 2020
I have done this so far but I am stuck
d =[1 2 3; 4 5 6; 7 8 9]
d+(40)(./7)-2
KSSV
KSSV on 15 Sep 2020
Read about BODMAS rules..
d =[1 2 3; 4 5 6; 7 8 9]
(d+40)/7-2
Nicholas Deosaran
Nicholas Deosaran on 15 Sep 2020
Thank you,
I am stuck on the part on how to take the square root of that then that the expoential of it..

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Answers (1)

KSSV
KSSV on 15 Sep 2020
Read about exp, sqrt. If A is my matrix, to get exp of sqrt, I will use.
iwant = exp(sqrt(A)) ;

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