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FunctionQuotient.cc
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1 // -*- C++ -*-
2 // $Id: FunctionQuotient.cc,v 1.3 2003/09/06 14:04:14 boudreau Exp $
4 #include <assert.h>
5 
6 namespace Genfun {
7 FUNCTION_OBJECT_IMP(FunctionQuotient)
8 
10  _arg1(arg1->clone()),
11  _arg2(arg2->clone())
12 {
13  if (arg1->dimensionality()!=arg2->dimensionality()) {
14  std::cout
15  << "Warning: dimension mismatch in function quotient"
16  << std::endl;
17  assert(0);
18  }
19 }
20 
22 AbsFunction(right),
23 _arg1(right._arg1->clone()),
24 _arg2(right._arg2->clone())
25 {}
27 {
28  delete _arg1;
29  delete _arg2;
30 }
31 
32 unsigned int FunctionQuotient::dimensionality() const {
33  return _arg1->dimensionality();
34 }
35 
36 
37 double FunctionQuotient::operator ()(double x) const
38 {
39  return (*_arg1)(x)/(*_arg2)(x);
40 }
41 
42 double FunctionQuotient::operator ()(const Argument & x) const
43 {
44  return (*_arg1)(x)/(*_arg2)(x);
45 }
46 
47 
48 Derivative FunctionQuotient::partial(unsigned int index) const {
49  const AbsFunction & fPrime =
50  ((_arg1->partial(index))*(*_arg2)-(*_arg1)*(_arg2->partial(index))) /
51  (*_arg2)/ (*_arg2);
52  return Derivative(&fPrime);
53 }
54 
55 } // namespace Genfun
virtual double operator()(double argument) const
virtual Derivative partial(unsigned int) const
Definition: AbsFunction.cc:40
virtual unsigned int dimensionality() const
Definition: AbsFunction.cc:79
FunctionQuotient(const AbsFunction *arg1, const AbsFunction *arg2)
Derivative partial(unsigned int) const
virtual unsigned int dimensionality() const
#define FUNCTION_OBJECT_IMP(classname)