PLEASE help! There should be three files a (.h file), a (main.cpp file), and a (test.cpp...
PLEASE help! There should be three files a (.h file), a (main.cpp file), and a (test.cpp file) please do not miss any of the questions!! I'm going to try this myself too
thanks for any and all help
Write a class called array2x2 which includes the following members: Private members: o A two dimensional array to store the data: double data[2][2];
Public members: o A default constructor which initializes data to having entries all 0. [i.e., data[i][j]=0.0 for all i and j: data=0 0 0 0]
o A function that displays the data in the following format: If data=23 −4 6 7, then display {{23, -4}; {6,7}}
o A function that given a 2x2 array A, sets the entries of data to that of A.
o A function that given a double x and indexes i and j, sets the element i,j of data to x ( data[i][j]=x). Make sure that i, j are within index bounds. [E.g. setElement(1,1, -10) will result in , data=0 0 0 −10. setElement(1,2,45) will do nothing.]
o A function that given the indexes i and j returns the value data[i] [j]. If the indexes are out of bounds, reduce/increase them to the closest legal index bound. [for example, if i=-2 and j=2 convert them to i=0 and j=1 and return data[0][1].]
o A function that returns the maximum value of the data.
o A function that searches for a value in data. If value is found, return 1 (true) and the indexes of the position found. If it is not found, return 0 (false) and -1, -1 for the indexes. (Hint: pass indexes as reference parameters)
Write a class called matrix2x2 derived from array2x2 via public inheritance. In addition, this news class should have the following member functions:
Public members: o A constructor with one default parameter set to 0. If the value of the parameter is b, then data should be initialized to: data= 0 0 [i.e., data[0][0]=b, data[1][1]=b, the other entries 0].
o A function display (overwriting the display function of array2x2), that displays the data as
o A function that returns the determinant.
, then the determinant is defined as the number (a*b-
[ If data=
c*d).]
o A function that multiplies the matrix by a number x.
, then the function returns a matrix2x2 with data= ∗
[If data=
∗ ∗ ∗ .]
o A function that sums two matrices. I.e. matrix2x2 sumMatrix(matrix2x2 M) [If data= and M.data=
+ℎ.]
+ + +
In the main function (outside the class), create a function that subtracts two matrices. Hint: use the last two public functions implemented inside the class For all the above write a main program that tests all the functions. When a function makes changes to the array/matrix, display before and after effects by printing the array/matrix using display function implemented.
Homework Answers
![Test.cpp: #include array2x2. h array2x2: :array2x2(void) for (int i0;i<2;i++) for (int j 0;]<2 ; j ++) = data[1] [j] 0; = /](http://img.homeworklib.com/questions/e5f3db80-52f1-11eb-8d30-93fd4bc889c6.png?x-oss-process=image/resize,w_560)
![// Set element individually void array2x2:13etDataElement (int a, int b, double i) data[a] [b] 1; = // Get the data value ind](http://img.homeworklib.com/questions/e66ec770-52f1-11eb-8274-e9d993ee49f0.png?x-oss-process=image/resize,w_560)
![array2XZ.n: #include <iostream> using namespace std; class array2X2 rivate: double data[2] [2]; ublic: // Constructor array2x](http://img.homeworklib.com/questions/e77a2ac0-52f1-11eb-932b-e7ab25e8dfbb.png?x-oss-process=image/resize,w_560)
![matrix.h: #include <iostream> #include array2 x2.h class matrix2x2: public array2x2 ublic: double matArray [2] [2] matrix2x](http://img.homeworklib.com/questions/e7f2fc10-52f1-11eb-aa06-af451a2a5287.png?x-oss-process=image/resize,w_560)
copyable code:
main.cpp:
#include <iostream>
#include "matrix.h"
using namespace std;
int main(void)
{
matrix2x2 matrix(35.0);
cout << endl << " Initial Matrix: " << endl;
matrix.display();
cout << endl << " Determinant: " << matrix.datadeterminent() << endl;
matrix.display();
cout << endl << " After Multiplication: " << endl;
matrix.muliplicatMatrix(3);
matrix.display();
cout << endl << " After Summation: " << endl;
matrix2x2 mat2(20.9);
matrix.sumofMatrix(mat2);
matrix.display();
system("pause");
return 0;
}
Test.cpp:
#include"array2x2.h"
array2x2::array2x2(void)
{
for (int i = 0;i<2;i++)
{
for (int j = 0;j<2;j++)
{
data[i][j] = 0;
}
}
}
//Display Method
void array2x2::display()
{
cout << endl << "{{" << data[0][0] << "," << data[0][1] << "};{" << data[1][0] << "," << data[1][1] << "}}" << endl;
}
// Set Values
void array2x2::setDataEntries(double arr[2][2])
{
for (int i = 0;i<2;i++)
{
for (int j = 0;j<2;j++)
{
data[i][j] = arr[i][j];
}
}
}
// Set element individually
void array2x2::setDataElement(int a, int b, double i)
{
if (a<2 && b<2)
{
data[a][b] = i;
}
}
// Get the data value individually
double array2x2::getDataElement(int a, int b)
{
double value;
if (((a<2) && (a >= 0)) && ((b<2) && (b >= 0)))
{
value = data[a][b];
}
else
value = -1;
return value;
}
// Get the max value
double array2x2::getmaximum()
{
double greater = data[0][0];
for (int i = 0;i<2;i++)
{
for (int j = 0;j<2;j++)
{
if (data[i][j]>greater)
{
greater = data[i][j];
}
}
}
return greater;
}
// Search for a value
int array2x2::searchDataElement(double value)
{
int found = 0;
for (int i = 0;i<2;i++)
{
for (int j = 0;j<2;j++)
{
if (data[i][j] == value)
{
found = 1;
cout << "The index is: " << i << ", " << j << endl;
break;
}
}
}
if (found == 0)
{
cout << "The index is: -1, -1" << endl;
}
return found;
}
array2x2.h:
#include <iostream>
using namespace std;
class array2x2
{
private:
double data[2][2];
public:
// Constructor
array2x2(void);
//Display Method
void display();
// Set Values
void setDataEntries(double array[2][2]);
// Set element individually
void setDataElement(int a, int b, double i);
// Get the data value individually
double getDataElement(int a, int b);
// Get the max value
double getmaximum();
// Search for a value
int searchDataElement(double value);
};
matrix.h:
#include<iostream>
#include "array2x2.h"
class matrix2x2 : public array2x2
{
public:
double matArray[2][2];
matrix2x2(double b = 0)
{
array2x2::setDataElement(0, 0, b);
array2x2::setDataElement (1, 1, b);
}
void display()
{
array2x2::display();
}
double datadeterminent()
{
/* Determinant of a matrix is ad - bc */
double deter = (array2x2::getDataElement(0, 0) * array2x2::getDataElement(1, 1)) - (array2x2::getDataElement(0, 1) * array2x2::getDataElement(1, 0));
return deter;
}
void muliplicatMatrix(int x)
{
for (int i = 0;i<2;i++)
{
for (int j = 0;j<2;j++)
{
double dval = array2x2::getDataElement(i, j);
/* Missing comma after j */
array2x2::setDataElement(i, j, dval*x);
}
}
}
void sumofMatrix(matrix2x2 M)
{
for (int i = 0;i<2;i++)
{
for (int j = 0;j<2;j++)
{
double dval = array2x2::getDataElement(i, j);
array2x2::setDataElement(i, j, (dval + M.getDataElement(i, j)));
}
}
}
};
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