Jep Extensions

Jep Extensions are a set of add-ons for the Jep mathematical expression parser. They include

Structured programming Allows block style programming, such as for, while and do loops, as well as java-style if-else blocks.
Fast Evaluation Allows very fast evaluation for double precision, typically 4-5 times faster.
MathmlConversion to/from presentation MathML
Simplification removes redundant parts of expression like adding zero or multiplying by 1.
Polynomial Conversion to polynomials. Can be used to compare two polynomials.
Matrices Allows vectors and matrices to be used. Includes a range of vector and matrix functions like determinant and dot product.
Statistical A range of statistical functions
Differentiation Symbolic differentiation of expressions
Fields Allow calculations over specific fields such as the rationals.


The Extensions Console a command line applet showing the use of different fields, symbolic operations, matrix calculation and statistical functions.

The Implicit plotter applet shows the speed up with using the Fast Evaluation jep extension. This shows a 10 fold speed up over standard Jep. It can evaluating (x^2+y^2)^3-4 x^2 y^2 for 250K points in 0.064 seconds, i.e. 220 nano-seconds per evaluation.

Algebraic surface an advanced example which calculates solutions of equations of the form x^2+y^2-z^2=0 giving surfaces in three dimensions.