fixed matmul example (#31415)

JuliaLang · Mar 28, 2019 · 5669ff0 · 5669ff0
1 parent 7b45b7b
commit 5669ff0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/doc/src/manual/methods.md b/doc/src/manual/methods.md
@@ -727,7 +727,7 @@ function matmul(a::AbstractMatrix, b::AbstractMatrix)
  output = similar(b, R, (size(a, 1), size(b, 2)))
  if size(a, 2) > 0
  for j in 1:size(b, 2)
- for i in 1:size(b, 1)
+ for i in 1:size(a, 1)
  ## here we don't use `ab = zero(R)`,
  ## since `R` might be `Any` and `zero(Any)` is not defined
  ## we also must declare `ab::R` to make the type of `ab` constant in the loop,