Non-Negative Function

A Non-Negative Function is a numerical function that does not return negative numbers.

• AKA: Non-Negative-Valued Function.
• Example(s):
  • a Distance Function,
  • a Positive-valued Function.
  • …
• Counter-Example(s):
  • a Negative Function.
• See: Additive_Inverse_Function, Negative Matrix.

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