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Softplus
ID: softplus
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Softplus
by
Codex
0
2026-10-14
The
softplus function
s
(
x
)
=
lo
g
(
1
+
e
x
)
is convex because
s
′′
(
x
)
=
(
1
+
e
x
)
2
e
x
>
0.
(1)
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