Derivative (')
 Usage
Notes
 Further Examples
Here is a function of one variable.
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This is the derivative of f evaluated at z.
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You can take the derivative of the expression defining f directly, without having to define f.
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This doesn't work.
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However, this works.
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This is the third derivative of g at z.
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Entering the third derivative directly as g to the power (3) doesn't work. Instead of taking the third derivative of g, we get the cube of g, because the (3) evaluates to  .
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Here is a function of three variables.
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This differentiates h once with respect to x, twice with respect to y and three times with respect to z. The result is represented as a pure function.
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Here the derivative is evaluated at the point with coordinates x, y, z.
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