Public Types | Public Member Functions | Protected Attributes | Private Member Functions | List of all members
o2scl::funct11_string Class Reference

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

#include <funct.h>

Public Types

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

Public Member Functions

 funct11_string (std::string expr, std::string var)
 Specify the string and the parameters.
int set_function (std::string expr, std::string var)
 Specify the string and the parameters.
int set_parm (std::string name, double val)
 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

calculator calc
 The object for evaluating strings.
std::map< std::string, double > vars
 Parameter map.
std::string st_form
 The expr.
std::string st_var
 The variable.

Private Member Functions

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

Detailed Description

For example,

funct11_string f("pi*r^2","r",1,"pi");
ubvector par(1);
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.

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).