 Solution

ID: past-exam-of-the-year-1-of-the-computer-science-course-of-the-university-of-oxford/2013/digital-systems-linear-algebra-introduction-to-formal-proof/6/b/solution

M

λ

and a nonzero vector

v

satisfying

M v = λ v, v \neq = 0.

Thus the linear map represented by

M

scales this particular direction by

λ

. The nonzero condition excludes the zero vector, which would otherwise satisfy the displayed equation for every scalar.

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