I am trying to understand the meaning of subgradient precisely. Is the subgradient of a function at point $x$, any linear underestimator of a function that touches the function in only at $x$?
Do you know a more elegant way of putting it?
2026-03-25 17:22:42.1774459362
What is the definition of subgradient in words?
284 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in DEFINITION
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