#include <iostream>
#include <iomanip>
using namespace std;
#include "Matrix.h"

Matrix::Matrix(const int & row,
   const int & col,
   int m[][4]) {
if (col <= 0 || row <= 0) {
   this->m = 0;
   this->col = 0;
   this->row = 0;
} else {
   this->col = col;
   this->row = row;
   this->m = new int * [row];
   for (int i = 0; i < row; i++) {
         this->m[i] = new int[col];
         for (int j = 0; j < col; j++) {
            this->m[i][j] = m[i][j];
         }
   }
}
}

Matrix::Matrix(const Matrix& orig) {
if (orig.col <= 0 || orig.row <= 0) {
   this->m = 0;
   this->col = 0;
   this->row = 0;
} else {
   this->col = orig.col;
   this->row = orig.row;
   this->m = new int * [row];
   for (int i = 0; i < row; i++) {
         this->m[i] = new int[col];
         for (int j = 0; j < col; j++) {
            this->m[i][j] = orig.m[i][j];
         }
   }
}
}

Matrix::~Matrix() {
for (int i = 0; i < row; i++) {
   delete [] this->m[i];
}
delete [] this->m;
}

bool Matrix::isSymmetric() {
if (isSquare() == false) {
   return false;
}
for (int i = 0; i < row; i++) {
   for (int j = i; j < col; j++) {
         if (this->m[i][j] != this->m[j][i]) {
            return false;
         }
   }
}
return true;
}

If a,b &gt;0 and c&gt; a+b, then prove that lga + lgb &lt; 2*lgc -2...

If a,b >0 and c> a+b, then prove that lga + lgb < 2*lgc -2...