Package com.klg.jclass.util.formulae

Contains classes that encapsulate mathematical expressions (operators) whose operands may be scalars, vectors (in the mathematical sense), and matrices.

See:
Description

Interface Summary

Expression	This interface defines the minimum support necessary for something to be considered an expression - basically it must evaluate to something.
ExpressionReference	This is a marker interface which identifies Expressions which exist solely to point to data/Expressions in other places (e.g.
Result	This is a marker interface which identifies Expression types which are valid return types from the evaluation of other Expressions.

Class Summary

Abs	This is a concrete implementation for the absolute value operation.
Add	This is a concrete implementation for the addition "+" operation.
Average	This is a concrete implementation for the average operation.
Ceiling	This is a concrete implementation for the ceiling operation.
Count	This is a concrete implementation for the count operation.
Divide	This is a concrete implementation for the division "/" operation.
ExpressionList	An expression list is a list (or set) of expressions
ExpressionVariable	A variable is a named expression which can have its value changed by name-keyed access to it.
Floor	This is a concrete implementation for the floor operation.
GeometricMean	This operation computes the geometric mean of a set of numbers Geometric mean is defined as the Nth root of the product of a set of N numbers.
JCExpressionCellRenderer	Renders the result of a formula (com.klg.jclass.util.formulae.Expression) in a cell.
MathExpressionList	A MathExpressionList is a List of Expressions
MathMatrix	The class of matrices (we almost undoubtedly do not ever need to go beyond this point, since nobody in their right mind would ever try to do tensor math in a spreadsheet).
MathScalar	MathScalar is a scalar constant represented as a MathValue.
MathValue	The class MathValue forms the root for all derived constant-based result/data classes.
MathVector	The class of vectors (in a linear algebra sense) for matrix math.
Max	This is a concrete implementation for the max operation.
Median	This operation computes the median value in a set of elements.
Min	This is a concrete implementation for the min operation.
Multiply	This is a concrete implementation for the multiplication "*" operation.
Operation	The Operation class defines the basic elements of an operator.
Power	This is a concrete implementation for the exponentiation "^" operation.
Product	This is a concrete implementation for the product "*" operation.
QueryExpressionList	A QueryExpressionList is a List view of a set of Expressions stored in a ResultSet (result of a database/datasource query)
RealComparator	A RealComparator compares two real-valued MathValues NOTE: We implement this so that (eventually, if we desire) we can add additional comparators to provide such things as a mechanism for comparison of vectors or complex numbers
Remainder	This is a concrete implementation for the remained "%" operation.
Root	This is a concrete implementation for square roots This is a unary operator, *???but can also work on lists???*.
Round	This is a concrete implementation for the round operation.
Sort	This operation returns a sorted list of the given elements (secondary/nested lists are flattened)
StdDeviation	This is a concrete implementation for the Standard Deviation operation.
Subtract	This is a concrete implementation for the subtraction "-" operation.
Sum	This is a concrete implementation for the sum "+" operation.
TableExpressionList	A TableExpressionList represents an examination of a rectangular range of cells stored in a JCTableDataModel
TableExpressionListIterator	TableExpressionListIterator implements the ListIterator interface to allow iteration over the elements of a TableExpressionList.
TableReference	TableReference selects a single cell from a JCTableDataModel
Trunc	This is a concrete implementation for the trunc (truncation) operation.

Exception Summary

OperandMismatchException

We throw an OperandMismatchException when an illegal mathematical construct is evaluated.

Package com.klg.jclass.util.formulae Description

Contains classes that encapsulate mathematical expressions (operators) whose operands may be scalars, vectors (in the mathematical sense), and matrices. These objects may then be stored as the generalized values of cells in a JClass PageLayout table, or in a JClass LiveTable, where they may be evaluated at run time to produce results based on the then-current data.