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Fix the "Gradients and Layers" documentation (#2628) #2629

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Merged
merged 3 commits into from
Nov 28, 2025
Merged

Fix the "Gradients and Layers" documentation (#2628) #2629

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9c90afb
Update model definitions in basics.md to include identity function in…
gomurin0428 Nov 24, 2025
eaf5f84
Revert "Update model definitions in basics.md to include identity fun…
gomurin0428 Nov 24, 2025
70fec3d
Update model definitions in basics.md to consistently include identit…
gomurin0428 Nov 24, 2025
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4 changes: 2 additions & 2 deletions docs/src/guide/models/basics.md
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Expand Up @@ -310,7 +310,7 @@ Here's a composition of 3 functions, in which the last step is the function `onl
which takes a 1-element vector and gives us the number inside:

```jldoctest poly; output = false, filter = r"[+-]?([0-9]*[.])?[0-9]+(f[+-]*[0-9])?"
model1 = only ∘ Layer(20, 1) ∘ Layer(1, 20)
model1 = only ∘ Layer(20, 1, identity) ∘ Layer(1, 20)

y = model1(Float32[0.1]) # output is a Float32 number

Expand All @@ -331,7 +331,7 @@ This `model2` will work the same way (although its fields have different names):
```jldoctest poly; output = false, filter = r"[+-]?([0-9]*[.])?[0-9]+(f[+-]*[0-9])?"
model2 = let
lay1 = Layer(1, 20) # local variables containing layers
lay2 = Layer(20, 1)
lay2 = Layer(20, 1, identity)
function fwd(x) # equivalent to x -> only(lay2(lay1(x)))
mid = lay1(x)
lay2(mid) |> only
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