755c60a7ca
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1244 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
42 lines
811 B
Plaintext
42 lines
811 B
Plaintext
=================================================================
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Logtalk - Object oriented extension to Prolog
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Release 2.22.5
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Copyright (c) 1998-2005 Paulo Moura. All Rights Reserved.
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=================================================================
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% start by loading the example:
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| ?- logtalk_load(symdiff(loader)).
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...
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% simplify the expression x^1 + x0 - x1
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| ?- (x**1 + x*0 - x*1)::simplify(S).
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S = 0
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yes
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% differentiate and then simplify the expression 2x^3 + x^2 - 4x
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| ?- (2*x**3 + x**2 - 4*x)::diff(D), D::simplify(S).
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D = 2*(3*x**2*1)+2*x**1*1-4*1
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S = 2*(3*x**2)+2*x-4
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yes
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% differentiate and then simplify the expression ln(x^2 + 2x - 7) + 4x
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| ?- (log(x**2 + 2*x - 7) + 4*x)::diff(D), D::simplify(S).
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D = (2*x**1*1+2*1)*(x**2+2*x-7)** -1+4*1
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S = (2*x+2)*(x**2+2*x-7)** -1+4
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yes
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