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Suppose you know the density of some (strange) substance at 10oC and 20oC, 125 gm/cm3 and 145 gm/cm3.
You want to know its density at, say, 13oC. You could use linear interpolation.
To do so, you first find the linear function that satisfies the points (10, 125) and (20, 145). I think it's D=105 + 2t.
Now since 13 is between the temperatures for which we have data we can interpolate: 105 + 2(13) = 131 or 131 gm/cm3.
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What is linear interpolation used for?
Linear interpolation is used as a method used in mathematics of constructing a curve that has the best fit to a series of points of data using linear polynomials.
What is meant by Piecewise linear interpolation?
Interpolation in general is a way to determine intermediate values from a set of coordinates. Linear interpolation would be to fit a single linear function to the entire set of coordinates. Piecewise linear interpolation would then be to determine intermediate values from the set of coordinates by fitting linear functions between each set of coordinates. Connect-the-dots so to speak.
How are gaps in a sequence filled in?
What you are asking is not precisely clear, but in general missing data is filled in by a process of interpolation. eg. Linear interpolation is a method of curve fitting using linear polynomials to construct new data points within the range of a discrete set of known data points.
What are the uses of interpolation in statistics?
Linear Interpolation (Statistics) Below is a Frequency Table of the Lengths, to the nearest minute, of phone calls made from an office one day.Length (min)-----------------Frequency0 - 2 --------------------------------- 83 - 5 --------------------------------- 116 - 9 --------------------------------- 1610 - 15 ----------------------------- 1416 - 20 ------------------------------ 9> 20 ---------------------------------- 3
Interpolation program using matlab?
Matlab has a lot of functions for interpolate, depending on what you're trying to do. You don't need a toolbox for it, either. Type "doc interp1" to get started and navigate the help file from there.
