2023 CSE231 Assignment Three A polynomial of a real valued variable x is | Assignment Collections

Computer Science 2023 A Polynomial Of A Real Valued Solution NetBeans Solution

2023 CSE231 Assignment Three A polynomial of a real valued variable x is | Assignment Collections

CSE231: Assignment Three 

A polynomial of a real valued variable  x  is an expression of the form a

n

x

+ an-1

x

n-1 

+ … + 

a

1

x

1

+ a0

where a0

, …, a

n

are real constants, called coefficients. For instance, 2.5x

3

+1.2x-5 is 

a polynomial of  x  with a3

=2.5, a2

=0, a1

=1.2 and a0=-5. In this project, you are required to 

develop a class named Polynomial that supports symbolic manipulation of polynomials of a 

fixed variable x, that is, all polynomials are polynomials of the same variable  x. Your class 

must at least support operations for 

1.  Constructing a polynomial given an array of coefficients. For example, given the 

float point number array {2.5,0.0,1.2,-5}, the operation constructs a Polynomial 

object representing 2.5x

3

+1.2x-5. This is a constructor. 

2.  Adding  one  polynomial  to  another.  For  example,  if  this  object  represents 

2.5x

3

+1.2x-5 then adding another object representing 7x

4

+2x

3

+x

2

+3 to this  object 

changes this object so that it represents 7x

4

+5.5x

3

+x

2

+1.2x–2. Note that the ranks 

(the largest exponent) of the two polynomials are not necessary the same. 

3.  Multiplying  one  polynomial  by  another.  For  example,  if  this  object  represents 

2x

2

+x-5 then multiplying it by another object representing 3x

3

+x

2

+3 changes this

object  so  that  it  represents  6x

5

+5x

4

-14x

3

+x

2

+3x-15.  Again  the  ranks  of  the  two 

polynomials are not necessary the same.

4.  Evaluating  a  polynomial  for  a  given  value  for  x.   For  instance,  if  this  object 

represents 2x

2

+x-5 then evaluating it for x=2 yields 5. 

5.  Converting a Polynomial object to a string so that the Polynomial object can be 

displayed.  If  this  object  represents  3x

3

+x

2

-1  then  the  method  should  return 

“3*x^3 + x^2 – 1” although “3*x^3 + 1*x^2 + 0*x^1 + (-1)” is acceptable 

1.  Specify, design and implement Polynomial. Your implementation must use linked lists 

to represent polynomials. 

2.  Write an interactive test program that tests all the public methods of the Polynomial 

class.

Please submit the following. 

  Analysis: test data;

  Design: 

1.  Class diagrams showing representation of data;

2.  A class invariant for each class;

3.  Pre/Post conditions for required operations;

4.  Algorithms for required operations. Algorithms can be described in English, 

flow diagrams, or sequence diagrams;

  Code; 

  Screen snapshots of test runs. 

 

 

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