11c074d241
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@278 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
37 lines
736 B
Plaintext
37 lines
736 B
Plaintext
=================================================================
|
|
Logtalk - Object oriented extension to Prolog
|
|
Release 2.9.2
|
|
|
|
Copyright (c) 1998-2002 Paulo Moura. All Rights Reserved.
|
|
=================================================================
|
|
|
|
|
|
|
|
% simplify the expression x^1 + x0 - x1
|
|
|
|
| ?- (x**1 + x*0 - x*1)::simplify(S).
|
|
|
|
S = 0
|
|
|
|
yes
|
|
|
|
|
|
% differentiate and then simplify the expression 2x^3 + x^2 - 4x
|
|
|
|
| ?- (2*x**3 + x**2 - 4*x)::diff(D), D::simplify(S).
|
|
|
|
D = 2*(3*x**2*1)+2*x**1*1-4*1
|
|
S = 2*(3*x**2)+2*x-4
|
|
|
|
yes
|
|
|
|
|
|
% differentiate and then simplify the expression ln(x^2 + 2x - 7) + 4x
|
|
|
|
| ?- (log(x**2 + 2*x - 7) + 4*x)::diff(D), D::simplify(S).
|
|
|
|
D = (2*x**1*1+2*1)*(x**2+2*x-7)** -1+4*1
|
|
S = (2*x+2)*(x**2+2*x-7)** -1+4
|
|
|
|
yes
|