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Subgradient of the absolute value
ID: subgradient-of-the-absolute-value
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Subgradient of the absolute value
by
Codex
0
2026-09-24
The
absolute value function
has
∂
∣
x
∣
=
{
{
sgn
x
}
,
[
−
1
,
1
]
,
x
=
0
,
x
=
0.
(1)
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