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if(gcd==0) return; //ÈôΪ0£¬Ôò·µ»Ø for(int i= gcd;i>1;i--) //ÓÃÑ»·ÕÒ×î´ó¹«Ô¼Êý if((numerator%i==0)&& (denominator%i==0)) break; numerator/=i; //iΪ×î´ó¹«Ô¼Êý£¬½«·Ö×Ó·ÖĸÕû³ýËü£¬ÖØÐ¸³
denominator/=i;
//Èô·Ö×Ó·Öĸ¾ùΪ¸ºÊý£¬Ôò½á¹ûΪÕý if(numerator<0 && denominator<0) { numerator= -numerator; denominator= -denominator; }
//Èô·Ö×Ó·ÖĸֻÓÐÒ»¸öΪ¸ºÊý£¬Ôòµ÷ÕûΪ·Ö×ÓÈ¡¸º£¬·ÖĸȡÕý else if(numerator<0 || denominator<0) { numerator= -abs(numerator); denominator=abs(denominator); } }
/*****************************************************************************/
/*
º¯ÊýÃû³Æ£ºprint ¹¦ÄÜÃèÊö£ºÏÔʾ¸´Êý Ð޸ļǼ£º */
void rational::print() {
cout< if(numerator!=0 && denominator!=1) cout<<\ else cout<<\ } /*****************************************************************************/ /* º¯ÊýÃû³Æ£º operator + ¹¦ÄÜÃèÊö£ºÖØÔØÔËËã·û+ Ð޸ļǼ£º */ rational operator + (rational num1,rational num2) { rational temp; temp.denominator =num1.denominator *num2.denominator ; temp.numerator = num1.numerator *num2.denominator +num1.denominator *num2.numerator ; temp.optimization (); return temp; } /*****************************************************************************/ /* º¯ÊýÃû³Æ£ºoperator - ¹¦ÄÜÃèÊö£ºÖØÔØÔËËã·û- Ð޸ļǼ£º */ rational operator - (rational num1,rational num2) { rational temp; temp.denominator =num1.denominator *num2.denominator ; temp.numerator = num1.numerator *num2.denominator -num1.denominator *num2.numerator ; temp.optimization (); return temp; } /*****************************************************************************/ /* º¯ÊýÃû³Æ£ºoperator * ¹¦ÄÜÃèÊö£ºÖØÔØÔËËã·û* Ð޸ļǼ£º */ rational operator * (rational num1,rational num2) { rational temp; temp.denominator =num1.denominator *num2.denominator ; temp.numerator = num1.numerator *num2.numerator ; temp.optimization (); return temp; } /*****************************************************************************/ /* º¯ÊýÃû³Æ£ºoperator / ¹¦ÄÜÃèÊö£ºÖØÔØÔËËã·û/ Ð޸ļǼ£º */ rational operator / (rational num1,rational num2) { rational temp; temp.denominator =num1.denominator *num2.numerator ; temp.numerator = num1.numerator *num2.denominator ; temp.optimization (); return temp; } /*****************************************************************************/ /* º¯ÊýÃû³Æ£ºoperator == ¹¦ÄÜÃèÊö£ºÖØÔØÔËËã·û== Ð޸ļǼ£º */ bool operator ==(rational num1,rational num2) { if(num1.numerator ==num2.numerator && num1.denominator ==num2.denominator ) return true; else return false; } /*****************************************************************************/ /* º¯ÊýÃû³Æ£ºprint ¹¦ÄÜÃèÊö£ºÉùÃ÷ת»»º¯Êý,½«ÓÐÀíÊý¶ÔÏóת»»ÎªÊµÊý Ð޸ļǼ£º */ double real(rational x) { return(double(x.numerator ))/(double(x.denominator )); } /*****************************************************************************/ // matrix.cpp: implementation of the matrix class. #include } matrix::~matrix() { } /*****************************************************************************/ /* º¯ÊýÃû³Æ£º matrix::operator ()(short row, short col) ¹¦ÄÜÃèÊö£º ÖØÔØÔËËã·û³ÉÔ±º¯Êý Ð޸ļǼ£º */ int matrix::operator ()(short row, short col) { if(row>=1 && row<=rows && col>=1 && col<=cols) return elems[(row-1)*cols + (col-1)]; else return 0; } /*****************************************************************************/ /* º¯ÊýÃû³Æ£º matrix::SetElem(short row, short col,int val) ¹¦ÄÜÃèÊö£º ½«ÔªËØ(row,col)ÉèÖÃΪval Ð޸ļǼ£º */ void matrix::SetElem(short row, short col,int val) { if(row>=1 && row<=rows && col>=1 && col<=cols) elems[(row-1)*cols+(col-1)]= val; } /*****************************************************************************/ /* º¯ÊýÃû³Æ£º matrix::Disp() ¹¦ÄÜÃèÊö£º ÏÔʾ¾ØÕóÔªËØ Ð޸ļǼ£º */ void matrix::Disp() { for(int row=1;row<=rows;row++) { for(int col=1;col<=cols;col++) cout< } } /*****************************************************************************/ /* º¯ÊýÃû³Æ£º operator +(matrix p,matrix q) ¹¦ÄÜÃèÊö£º ÖØÔØÔËËã·û£« Ð޸ļǼ£º */ matrix operator +(matrix p,matrix q) { matrix m(p.rows,p.cols); if(p.rows!=q.rows || p.cols!=q.cols) return m; for(int r=1;r<=p.rows;r++) for(int c=1;c<=p.cols;c++) m.SetElem(r,c,p(r,c)+q(r,c)); return m; } /*****************************************************************************/ /* º¯ÊýÃû³Æ£º operator -(matrix p,matrix q) ¹¦ÄÜÃèÊö£º ÖØÔØÔËËã·û- Ð޸ļǼ£º */ matrix operator -(matrix p,matrix q) { matrix m(p.rows,p.cols); if(p.rows!=q.rows || p.cols!=q.cols) return m; for(int r=1;r<=p.rows;r++) for(int c=1;c<=p.cols;c++) m.SetElem(r,c,p(r,c)-q(r,c)); return m; } /*****************************************************************************/ /* º¯ÊýÃû³Æ£º operator *(matrix p,matrix q) ¹¦ÄÜÃèÊö£º ÖØÔØÔËËã·û* Ð޸ļǼ£º */ matrix operator *(matrix p,matrix q)
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