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- SYMBOLIC MATHEMATICS
-
- Prolog can be used for solving symbolic and mathematical problems.
- Expressions can be modeled by composite objects. (In the program this
- is demonstrated by EXPR)
-
- In the example, the differentiation is followed by a reduction.
-
- The formulas of differentiation are:
-
- d(K)/dx = 0.
- d(x)/dx = 1.
- d(y)/dx = 0.
- d(F+G)/dx = d(F)/dx+d(G)/dx.
- d(F-G)/dx = d(F)/dx-d(G)/dx.
- d(F*G)/dx = G*d(F)/dx+F*d(G)/dx.
- d(F^n)/dx = n*F^(n-1).
- d(ln(x))/dx = 1/x.
-
- Differentiation is realized by the predicate DIFF. Two parameters are
- used:
- 1) The original expression
- 2) The differentiated result
-
- Each differentiation-rule has a corresponding rule in the predicate
- diff.