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ginac-devel@ginac.de

October 1999

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Consider this...
by Richard B. Kreckel 31 Oct '99

31 Oct '99

ginsh - GiNaC Interactive Shell V0.3 Copyright (C) 1999 Johannes Gutenberg Universitaet Mainz, Germany This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details. > (1+x)*(1-I); 1-I*x+1-I > print("); type=3add, hash=1 (0x1), flags=3, nops=2 x (symbol): serial=2, hash=0 (0x0), flags=3 1-I (numeric): hash=2147483649 (0x80000001), flags=11 ----- overall_coeff 1-I (numeric): hash=2147483649 (0x80000001), flags=11 =====

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ginsh symbols example
by Christian Bauer 25 Oct '99

25 Oct '99

Hi! Just a (short?) example on how symbols now behave in ginsh after the latest modifications to GiNaC and ginsh: ghost:~/projects/ginsh$ ./ginsh ginsh - GiNaC Interactive Shell V0.3 Copyright (C) 1999 Johannes Gutenberg Universitaet Mainz, Germany This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details. > expand((a+b)^2); expand(('a'+'b')^2); a^2+b^2+2*b*a a^2+b^2+2*b*a > a=2; b=-3; 2 -3 > expand((a+b)^2); expand(('a'+'b')^2); 1 a^2+b^2+2*b*a > x=a+b; y='a'+'b'; -1 b+a > x; 'x'; y; 'y'; -1 x -1 y > print(x); print('x'); print(y); print('y'); -1 (numeric): hash=2147483649 (0x80000001), flags=11 x (symbol): serial=8, hash=10 (0xa), flags=3 -1 (numeric): hash=2147483649 (0x80000001), flags=11 y (symbol): serial=13, hash=10 (0xa), flags=3 > eval(x); eval('x'); eval(x,1); eval('x',1); -1 -1 -1 -1 > eval(y); eval('y'); eval(y,1); eval('y',1); -1 -1 -1 a+b > expand(x^2); expand('x'^2); 1 x^2 > expand(y^2); expand('y'^2); 1 y^2 > unassign('a'); unassign('b'); a b > x; 'x'; y; 'y'; -1 x a+b y > print(x); print('x'); print(y); print('y'); -1 (numeric): hash=2147483649 (0x80000001), flags=11 x (symbol): serial=8, hash=10 (0xa), flags=3 type=3add, hash=0 (0x0), flags=3, nops=2 a (symbol): serial=2, hash=376325877 (0x166e46f5), flags=11 1 (numeric): hash=2147483649 (0x80000001), flags=11 ----- b (symbol): serial=5, hash=659577159 (0x27505947), flags=11 1 (numeric): hash=2147483649 (0x80000001), flags=11 ===== y (symbol): serial=13, hash=10 (0xa), flags=3 > eval(x); eval('x'); eval(x,1); eval('x',1); -1 -1 -1 -1 > eval(y); eval('y'); eval(y,1); eval('y',1); a+b a+b a+b a+b > expand(x^2); expand('x'^2); 1 x^2 > expand(y^2); expand('y'^2); a^2+b^2+2*b*a y^2 > quit Bye, Christian -- / Coding on PowerPC and proud of it \/ http://www.uni-mainz.de/~bauec002/

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