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Greetings,</div>
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I am new to GiNac. I was trying to use the degree function, but I got a weird result. </div>
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My initial expression is </div>
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-4*(-3+x)*(-1+x)+9/2*(-2+x)*(-1+x)+1/2*(-2+x)*(-3+x)</div>
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After the "expand" function call, it returns</div>
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9/2*x^2-5/2*x-4*x^2+16*x-27/2*x+1/2*x^2</div>
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My goal is to add/subtract the coefficient of equal degree terms. I could not find any function for that. ( if it is already there, please point me)</div>
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I wanted to write a function to achieve it. To do so. I am taking each term and try to see if </div>
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for (size_t i = 0; i != poly.nops(); ++i) { // Here poly is polynomial as above</div>
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ex subExpres=poly.op(i); // I get individual terms</div>
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cout << "is polynomial="<< is_polynomial(subExpres,symb) <<endl;</div>
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// GiNaC::ex pow2=pow(symb,2);</div>
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cout << subExpres<< " degree=" << subExpres.degree(symb) << endl; </div>
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}</div>
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It determines the subexpression as a polynomial but can not determine the degree. E.g </div>
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is polynomial=1<br>
9/2*x^2 degree=0 // Here degree returned is wrong.</div>
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Your thoughts will be appreciated.</div>
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Regards,</div>
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Santos</div>
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