Hi, Is there an easy way to add a standard unit vector (e_i, which is vector of length ‘l’ with all zeros except for ith position? Example: Let x be a vector of length 5. I want to add e_3 (= [ 0 0 1 0 0]) to it. Right now I’m doing it as y = x + eye(5)[:,3] Is there any nice way to do it like x…

Linear Algebra - Unit vectors e_i

yuyichao April 18, 2018, 11:47am 10

y = (1 - c) .* x .+ c .* (1:5 .== 3)

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