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Public Types | Public Member Functions | Protected Attributes | Private Member Functions
o2scl::funct11_string Class Reference

One-dimensional function from a string. More...

Detailed Description

For example,

funct11_string f("pi*r^2","r",1,"pi");
ubvector par(1);
f.set_parms(par);
for(double r=1.0;r<=2.0;r+=0.1) {
cout << f(x) << endl;
}

will print out the area of circles having radii between 1 and 2.

Definition at line 60 of file funct.h.

#include <funct.h>

Public Types

typedef
boost::numeric::ublas::vector
< double > 
ubvector
 

Public Member Functions

 funct11_string (std::string formula, std::string var, int np=0, std::string parms="")
 Specify the string and the parameters.
 
int set_function (std::string formula, std::string var, int np=0, std::string parms="")
 Specify the string and the parameters.
 
template<class vec_t >
int set_parms (const vec_t &p)
 Set the values of the auxilliary parameters that were specified in parms in the constructor.
 
virtual double operator() (double x) const
 Compute the function at point x and return the result.
 

Protected Attributes

FunctionParser fpw
 The object for evaluating strings.
 
size_t st_np
 The number of parameters.
 
ubvector arr
 Storage for the fpw call.
 
std::string st_form
 The formula.
 
std::string st_var
 The variables.
 
std::string st_parms
 The parameters.
 

Private Member Functions

 funct11_string (const funct11_string &)
 
funct11_stringoperator= (const funct11_string &)
 

The documentation for this class was generated from the following file:

Documentation generated with Doxygen. Provided under the GNU Free Documentation License (see License Information).
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