The partial-derivative operators in the Calculus palette can be modified to provide higher-ordered derivatives. Simply edit the notation as shown below to obtain , and .
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Control-drag
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Context Panel: Assign Name
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Obtain the distinct third-order partial derivatives at and at
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Calculus palette: Partial-differentiation operators
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Context Panel: Evaluate and Display Inline
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Context Panel: Simplify≻Simplify
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Context Panel: Evaluate at a Point≻
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Alternatively, to evaluate the derivatives at the point P:, define as the list of substitutions . Had the derivatives been assigned names, they could have been referenced in the evaluation step. The choice below re-computes the derivative inside the evaluation template.
Define the substitution equations for P:
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Context Panel: Assign Name
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Obtain the distinct third-order partial derivatives at P:
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Expression palette: Evaluation template
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Calculus palette: Partial-differentiation operators
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Context Panel: Evaluate and Display Inline
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