Package org.tweetyproject.math.term
Class Power
- java.lang.Object
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- org.tweetyproject.math.term.Term
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- org.tweetyproject.math.term.FunctionalTerm
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- org.tweetyproject.math.term.Power
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public class Power extends FunctionalTerm
This class represents a term raised to some power.- Author:
- Matthias Thimm
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Method Summary
Modifier and Type Method Description Term
derive(Variable v)
Differentiates the term with respect to the given variable.java.util.List<Term>
getTerms()
boolean
isContinuous(Variable v)
Checks whether this term is continuous in v.boolean
isLinear()
Checks whether this term is linear.Term
replaceTerm(Term toSubstitute, Term substitution)
Replaces each occurrence of "toSubstitute" by "substitution" and return the new term.Term
simplify()
Simplifies this term in an equivalent way:
- Replaces products that contain a zero by the constant zero
- Removes a term one from products
- Removes a term zero from sums
- Aggregates constants in sums, products, and minimums
- Evaluates functional terms on constants
- Simplifies fractions where possible.Sum
toQuadraticForm()
java.lang.String
toString()
Constant
value()
Computes the actual value of this term if it contains no variables.-
Methods inherited from class org.tweetyproject.math.term.FunctionalTerm
collapseAssociativeOperations, expandAssociativeOperations, getAbsoluteValues, getMaximums, getMinimums, getProducts, getSums, getTerm, getVariables, isInteger, toLinearForm
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Methods inherited from class org.tweetyproject.math.term.Term
add, doubleValue, evaluateMatrix, evaluateVector, evaluateVector, isContinuous, isQuadratic, min, minus, mult, replaceAllTerms, replaceAllTerms
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Method Detail
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replaceTerm
public Term replaceTerm(Term toSubstitute, Term substitution)
Description copied from class:Term
Replaces each occurrence of "toSubstitute" by "substitution" and return the new term.- Specified by:
replaceTerm
in classFunctionalTerm
- Parameters:
toSubstitute
- the term to be substitutedsubstitution
- the new term- Returns:
- this term where "toSubstitute" is replaced by "substitution"
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toString
public java.lang.String toString()
- Specified by:
toString
in classFunctionalTerm
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value
public Constant value() throws java.lang.IllegalArgumentException
Description copied from class:Term
Computes the actual value of this term if it contains no variables.- Specified by:
value
in classFunctionalTerm
- Returns:
- the value of this term, either a float or an integer.
- Throws:
java.lang.IllegalArgumentException
- if this term contains at least on variable.
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isContinuous
public boolean isContinuous(Variable v)
Description copied from class:Term
Checks whether this term is continuous in v.- Specified by:
isContinuous
in classTerm
- Parameters:
v
- a variable- Returns:
- "true" iff this term is continuous in v.
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simplify
public Term simplify()
Description copied from class:Term
Simplifies this term in an equivalent way:
- Replaces products that contain a zero by the constant zero
- Removes a term one from products
- Removes a term zero from sums
- Aggregates constants in sums, products, and minimums
- Evaluates functional terms on constants
- Simplifies fractions where possible.
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toQuadraticForm
public Sum toQuadraticForm() throws java.lang.IllegalArgumentException
- Overrides:
toQuadraticForm
in classFunctionalTerm
- Throws:
java.lang.IllegalArgumentException
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derive
public Term derive(Variable v) throws NonDifferentiableException
Description copied from class:Term
Differentiates the term with respect to the given variable.- Specified by:
derive
in classTerm
- Parameters:
v
- a variable.- Returns:
- the derivation of this term wrt. the given variable.
- Throws:
NonDifferentiableException
- if the term cannot be differentiated.
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isLinear
public boolean isLinear()
Description copied from class:Term
Checks whether this term is linear.- Overrides:
isLinear
in classFunctionalTerm
- Returns:
- "true" if this term is linear.
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