In the following code, I can’t understand why sum(a[1,:],dims=2) gives a different answer then the first row of sum(a[1:2,:],dims=2). julia> a = [1 2 3 4; 5 6 7 8; 9 10 11 12]; julia> sum(a, dims=2) 3×1 Array{Int64,2}: 10 26 42 julia> sum(a[1:2,:], dims=2) 2×1 Array{Int64,2}: 10 26 julia> s…

Trouble Understanding Slicing

mbauman Split this topic April 13, 2021, 1:33pm 10

Topic		Replies	Views
Problem: extracting a row from an array, returns a column General Usage question , arrays	13	8718	April 11, 2020
Matrix multiplication - inconsistent behaviour General Usage question	50	2988	May 16, 2020
Vector{Vector} indices General Usage indexing , arrays	22	2910	September 19, 2022
Array{Float64,2} -> Array{Float64,1} General Usage indexing , array	5	2838	September 4, 2020
Array type modification New to Julia	48	2648	August 17, 2018