Syntactic sugar for discontinuous (mathematical) functions.
npm install foft 
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foft —#### It Is
- A lot of syntactic sugar
- For investigating the _results_ of known arithmetic expressions provided as functions in JavaScript over _specified evaluation ranges_,
- For investigating floating-point error tendencies in a JavaScript environment, and
- An ECMAScript module for browsers or nodejs.
#### It Is _not_
- Fast,
- A comprehensive calculator,
- Immune to inaccuracies,
- A computer algebra system,
- An equation solver, or
- An expression parser.
Foft that can create an instance as well as provide some static utilities.1. Its terms: Function or Foft instances
that should generally receive and return
- Numbers
- Arrays of Numbers,
- Nested Arrays of Numbers, or
- TypedArrays.
2. Some of the properties of its terms(1).
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