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Everything about Sign function

Function returning minus 1, zero or plus 1

In mathematics, the sign function or signum function is a function that has the value −1, +1 or 0 according to whether the sign of a given real number is positive or negative, or the given number is itself zero. In mathematical notation the sign function is often represented as or. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Sign functionA 5-minute orientation
  2. Skim a recent paper: De novo design of protein structure and function with RFdiffusionInfluential work since 2022
  3. Pick up a classic book: Queer ScienceThe most-reprinted book on the subject
  4. Read the landmark paper: ROS Function in Redox Signaling and Oxidative StressCited 6,638 times
  5. Go sideways: Absolute valueA closely related topic
  6. Go sideways: Heaviside step functionA closely related topic

📖 Definitions

Noun The signum function.

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🆕 Influential since 2022

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