How do you evaluate a norm like this?

GridironCPJ

‖A(x+αz)-b‖_2^2

where A is an mxn matrix, x and z are vectors in R^n, b is a vector in R^m, and α is a scalar.

Office_Shredder

I don't really understand the question. A(x+αz)-b is a vector in R^m, so you just calculate its norm

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GridironCPJ	How do you evaluate a norm like this? Tweet ‖A(x+αz)-b‖_2^2 where A is an mxn matrix, x and z are vectors in R^n, b is a vector in R^m, and α is a scalar.

Office_Shredder Blog Entries: 1 Recognitions: Homework Help	I don't really understand the question. A(x+αz)-b is a vector in R^m, so you just calculate its norm