Package com.singularsys.extensions.fastreal

Fast evaluation routines over doubles, can be up to ten times faster than standard Jep.

See: Description

Class Summary

Class	Description
AbstractEval	Abstract base class for rpe-base evaluation routines.
RpCommand	Data type for the command string
RpCommandList	A list of commands
RpConstants	Constants used by the evaluator.
RpEval	A fast evaluation algorithm for equations over Doubles, does not work with vectors or matrices.
RpEvaluator	An evaluator using the RpEval system.

Package com.singularsys.extensions.fastreal Description

Fast evaluation routines over doubles, can be up to ten times faster than standard Jep.

// Construct the compiler/evaluator
RpEval rpe = new RpEval(jep);

// Compile an expression
RpCommandList commands = rpe.compile(expression);

// Get a reference number for the "x" variable
int xRef = rpe.getVarRef("x");

// loop
for(double x=-1.0;x<=1.0;x+=0.01) {
        
        // set the value of "x"
        rpe.setVarValue(xRef,x);
        
        // evaluate
        double res = rpe.evaluate(commands);
}

Since:

Jep 3.5 / Extensions 2.0

See Also:

Manual page