/* SymbolicC++ : An object oriented computer algebra system written in C++ Copyright (C) 2007 Yorick Hardy and Willi-Hans Steeb This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include "symbolicc++.h" using namespace std; int main(void) { Symbolic alpha("alpha"); Symbolic X, XI, dX, result; X = ( ( cos(alpha), sin(alpha) ), (-sin(alpha), cos(alpha) ) ); cout << X << endl; XI = X[alpha == -alpha]; cout << XI << endl; dX = df(X, alpha); cout << dX << endl; result = XI * dX; cout << result << endl; result = result[(cos(alpha)^2) == 1 - (sin(alpha)^2)]; cout << result << endl; return 0; }