Package math.tartaglia

Class TartagliaExpressionParser

  • public class TartagliaExpressionParser
extends java.lang.Object
    Author:
    JIBOYE OLuwagbemiro Olaoluwa

    • Method Summary

      Modifier and Type Method Description
      void appendOneToStartOfFreeVariables()
      When the situation x+2y+z=9; is met, this method will convert it into 1.0x+2y+z=9;
      void doArithmetic()
      This method initializes the coefficients field with the coefficient of Xsquared at index 0 the coefficient of X at index 1 the coefficient of the constant term at index 2
      void freeWhiteSpaces()
      removes white space from the ArrayList
      java.util.ArrayList<java.lang.Double> getCoefficients()  
      java.lang.String getExpression()  
      java.util.ArrayList<java.lang.String> getScanner()  
      java.lang.String getUnknown()  
      java.lang.String interpretedSystem()  
      boolean isValid()  
      static void main​(java.lang.String[] args)  
      void recognizeCompoundVariables()
      turns the Xsquare into a single variable.
      void recognizeNegativesAndPositives()  
      void setExpression​(java.lang.String expression)  
      void setScanner​(java.util.ArrayList<java.lang.String> scanner)  
      void setValid​(boolean valid)  
      void validateChars()
      Checks the character set of this parser.
      void validateEqualsSymbol()  
      void validateNumbers()
      Checks the left and right of a number to see if the appropriate items are the ones there.
      void validateVars()
      Checks if the variables are properly arranged wrt other tokens.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • TartagliaExpressionParser

        public TartagliaExpressionParser​(java.lang.String expression)

    • Method Detail

      • getCoefficients

        public java.util.ArrayList<java.lang.Double> getCoefficients()
        Returns:
        the coefficients ArrayList object.

      • freeWhiteSpaces

        public void freeWhiteSpaces()
        removes white space from the ArrayList

      • setValid

        public void setValid​(boolean valid)

      • isValid

        public boolean isValid()

      • setScanner

        public void setScanner​(java.util.ArrayList<java.lang.String> scanner)

      • getScanner

        public java.util.ArrayList<java.lang.String> getScanner()

      • setExpression

        public void setExpression​(java.lang.String expression)

      • getExpression

        public java.lang.String getExpression()

      • appendOneToStartOfFreeVariables

        public void appendOneToStartOfFreeVariables()
        When the situation x+2y+z=9; is met, this method will convert it into 1.0x+2y+z=9;

      • validateEqualsSymbol

        public void validateEqualsSymbol()

      • validateChars

        public void validateChars()
        Checks the character set of this parser.

      • validateVars

        public void validateVars()
        Checks if the variables are properly arranged wrt other tokens.

      • validateNumbers

        public void validateNumbers()
        Checks the left and right of a number to see if the appropriate items are the ones there. It is a syntax error if an invalid item is found there

      • recognizeNegativesAndPositives

        public void recognizeNegativesAndPositives()

      • recognizeCompoundVariables

        public void recognizeCompoundVariables()
        turns the Xsquare into a single variable.

      • getUnknown

        public java.lang.String getUnknown()
        Returns:
        the name of the unknown.

      • doArithmetic

        public void doArithmetic()
        This method initializes the coefficients field with the coefficient of Xsquared at index 0 the coefficient of X at index 1 the coefficient of the constant term at index 2

      • interpretedSystem

        public java.lang.String interpretedSystem()
        Returns:
        the reduced form of the system in the form Ax³+Bx+C=0;

      • main

        public static void main​(java.lang.String[] args)