polyInterp

polyInterp(x,f) generates the simplest polynomial function defined by its derivatives at various points

Version 1.3.2 (1,93 KB)
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3. Sep 2026

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polyInterp(x,f) returns the simplest polynomial which evaluates to "f" at "x"
polyInterp(___,d) considers the order "d" derivative of the polynomial to equal "f" at "x".

Zitieren als

Graham Holt (2026). polyInterp (https://de.mathworks.com/matlabcentral/fileexchange/183904-polyinterp), MATLAB Central File Exchange. Abgerufen .

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Version Veröffentlicht Versionshinweise
1.3.2

Removes unnecessary initialization of confluent Vandermonde matrix
1.3.1

For consistency with existing literature
1.3.0

Uses vanderr() function, found in Convenience Bundle
1.2.5

Includes output for the Vandermonde matrix used
1.2.4

Changes order of inputs to allow for typical interpolation as default
1.2.3

Corrects consideration for x=0, unifies method to exclude conditionals
1.2.2

Corrects issue with misaligned coefficients
1.2.1

Minor speed-up/simplification for taking polynomial derivative
1.2.0

Includes functionality to solve systems with redundant conditions and improved clarity in algorithm with closer relation to underlying Vandermonde matrix
1.1.2

Allows for both row and column vector inputs, renamed for additional clarity
1.1.1

Added comments for more insight to process
1.1.0

Allowing for symbolic entries and renamed to better reflect its use case
1.0.0