Class interp_vec (o2scl)¶
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template<class vec_t = boost::numeric::ublas::vector<double>, class vec2_t = vec_t>
class o2scl::interp_vec : public o2scl::interp_base<boost::numeric::ublas::vector<double>, boost::numeric::ublas::vector<double>>¶ Interpolation class for pre-specified vector.
See also the Interpolation section of the O2scl User’s guide.
This interpolation class is intended to be sufficiently general to handle any vector type. Interpolation of ublas vector like objects is performed with the default template parameters.
This class does not double check the vector to ensure that all of the intervals for the abcissa are all increasing or all decreasing.
The type of interpolation to be performed can be specified using the set_type() function. The default is cubic splines with natural boundary conditions.
- Idea for Future:
Make version which copies vectors rather than storing pointers might be better and then has copy constructors.
Public Functions
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inline interp_vec()¶
Blank interpolator.
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inline interp_vec(size_t n, const vec_t &x, const vec2_t &y, size_t interp_type = itp_cspline)¶
Create an interpolation object with interpolation type
itp_cspline
based on the firstn
entries of vectorsx
andy
.
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inline virtual ~interp_vec()¶
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inline void set(size_t n, const vec_t &x, const vec2_t &y)¶
Modify the interpolation object to operate on the first
n
entries of vectorsx
andy
.
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inline void set(size_t n, const vec_t &x, const vec2_t &y, size_t interp_type)¶
Set a new vector to interpolate.
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inline void clear()¶
Manually clear the pointer to the user-specified vector.
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inline virtual double eval(const double x0) const¶
Give the value of the function \( y(x=x_0) \) .
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inline virtual double operator()(double x0) const¶
Give the value of the function \( y(x=x_0) \) .
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inline virtual double deriv(const double x0) const¶
Give the value of the derivative \( y^{\prime}(x=x_0) \) .
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inline virtual double deriv2(const double x0) const¶
Give the value of the second derivative \( y^{\prime \prime}(x=x_0) \) .
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inline virtual double integ(const double x1, const double x2) const¶
Give the value of the integral \( \int_a^{b}y(x)~dx \) .
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inline virtual const char *type() const¶
Return the type, “interp_vec”.
Protected Attributes
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interp_base<vec_t, vec2_t> *itp¶
Base interpolation object.
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size_t itype¶
Interpolation type.
Private Functions
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interp_vec(const interp_vec<vec_t, vec2_t> &it)¶
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interp_vec<vec_t, vec2_t> &operator=(const interp_vec<vec_t, vec2_t> &it)¶