Calling of Function polyval:

The curve does not appear very smooth on this plot, but that is as there are only five points in the x vector.

To estimate the temperature at various times, polyval can be used for discrete x points; it does not have to be used with the whole x vector. For illustration, to interpolate between the given data points and estmate what the temperature was at 2:30 p.m., 2.5 would be used.

>> polyval(coefs,2.5)

ans =

   67.1357

The polyval can also be used to extrapolate beyond the given data points, for illustration, to estimate the temperature at 1 p.m.:

>> polyval(coefs,1)

ans =

   54.6000

Posted Date: 10/22/2012 8:49:08 AM | Location : United States

Ask an Expert

Related Discussions:- Calling of function polyval, Assignment Help, Ask Question on Calling of function polyval, Get Answer, Expert's Help, Calling of function polyval Discussions

Write discussion on Calling of function polyval
Your posts are moderated

Write your message here..

Related Questions

Appending variables to the mat-file, Appending variables to the Mat-File: ... Appending variables to the Mat-File: Appending to the file adds to what has been saved in a file, and is accomplished by using the -append option. For illustration, supposing

Algorithm for the function explaine, Algorithm for the function explaine: ... Algorithm for the function explaine: The algorithm for the function explaine is as shown:  Print a description of e, the exp function, and how to find the approximate va

Illustration sorting vectors of structures, Illustration sorting vectors of... Illustration sorting vectors of structures: This function sorts the structures depend only on the price field. A more common function is shown next, that receives a string whi

Smoothing values, How can I use the weighted moving average formula in matl... How can I use the weighted moving average formula in matlab to smooth a column data of 404 values?

Binary search, Binary Search: The binary search supposes that the vect... Binary Search: The binary search supposes that the vector has been sorted first. The algorithm is just similar to the way it works whenever looking for a name in a phone direc

Function cirarea - anonymous functions, Function cirarea - Anonymous functi... Function cirarea - Anonymous functions: The function handle name is cirarea. The one argument is passed to the input argument radius. The body of the function is an expression

Matrix solutions of the linear algebraic equation, Matrix solutions to syst... Matrix solutions to systems of the linear algebraic equations: The linear algebraic equation is an equation of the form a 1 x 1 + a 2 x 2 + a 3 x 3    .  .  .  .  a n x n

Structures, Structures: The Structures are data structures which group... Structures: The Structures are data structures which group together values which are logically related in what are known as the fields of structure. The benefit of structures

Gauss, Gauss, Gauss-Jordan elimination: For 2 × 2 systems of equations... Gauss, Gauss-Jordan elimination: For 2 × 2 systems of equations, there are well-defined, easy solution techniques. Though, for the larger systems of equations, finding solutio

Text graphic function - graphics objects, Text graphic function - Graphics ... Text graphic function - Graphics objects: The text graphic function permits text to be printed in a Figure Window, involving special characters which are printed by using \spe