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Matrix transformations

Imiebee

New member
Sep 25, 2021
1
A matrix of dimension nxm
a. transforms a vector of dimension n to a vector of dimension m
b. transforms a vector of dimension m to a vector of dimension n
c. a vector of dimension n+m to a vector of dimension m
d. a vector of dimension n+m to a vector of dimension n
 

romsek

Member
Mar 27, 2017
27
Matrix multiplication (note that a vector is just an m x 1 matrix)

(n x m) X (m x k) => (n x k)

See if you can figure it out now.
 

Klaas van Aarsen

MHB Seeker
Staff member
Mar 5, 2012
9,593
Please use a meaningful title. Please don't just "dump" your problem on us. Please show some effort so that the helpers who are helping voluntarily will actually want to help.
 

Country Boy

Well-known member
MHB Math Helper
Jan 30, 2018
854
A matrix of dimension nxm
So which is the number of rows and which is the number of columns?

a. transforms a vector of dimension n to a vector of dimension m
b. transforms a vector of dimension m to a vector of dimension n
c. a vector of dimension n+m to a vector of dimension m
d. a vector of dimension n+m to a vector of dimension n