Calculus

+Calculus is the age-old study of infinetesimal rates of change. +I write articles here from the perspective of hyperreal numbers +instead of using limits because they were the original intuitive +way that calculus was invented (and how I originally reinvented +the derivative). +

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+ You can also browse the groff source files, + as well as use, modify, and distribute them to your liking. +

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Elementary Calculus

Derivative -- a fundamental operation regarding calculus.
Derivative Identities -- Deriving identities related to derivatives of simple functions.
Derivative Rules -- Deriving common derivative rules.

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Multivariable

Partial Derivative -- a fundamental operation regarding mulitvariable calculus.

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Source

+ These are the groff source files I compile my PDF from. You're free to download, modify, and distribute them freely. +