polyInterp

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

Version 1.2.4 (1.8 KB)
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22 Jul 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".

Cite As

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

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General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
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Version Published Release Notes
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