1
vote
2answers
37 views

trigonometric interpolation of a sampled signal

Given N sampled points, using the FFT we can get the Fourier transform of those N points $X_k$. With N/2 the Nyquist frequency and $X_0$ the DC value. Using the inverse we can then get back the ...
2
votes
1answer
502 views

Automatic calculation of the intersection of discrete curves

first of all, let me apologize for a poor math-english translation, I'll try my very best. I have the following situation: I have over 16.000 data files which I generated from a biometric ...
0
votes
1answer
200 views

Sagar an Payne stress-strain relationships and Boussinesq aproximation in Matlab

I have to do 2 problems in Matlab, and the Math course is not my favourite one. However, I have tried to resolve the first problem, based on another exercise, but I'm pretty sure it's wrong. Can you ...
1
vote
1answer
342 views

Produce piecewise monotonic function with 3 points and their slope with MATLAB

I'm trying to reproduce the shape of an airfoil's camber line using the leading edge angle, the trailing edge angle, the chord and the max camber value. I cannot use a spline because it overshoots ...
0
votes
1answer
4k views

Linear interpolation

The blue curve is a set of (X,Y) coordinates. Orange segment passes through two of these (X,Y) coordinates (black dots of ...
3
votes
1answer
1k views

MATLAB Hermite interpolation

Anyone know where I can find the Hermite interpolation algorithm in MATLAB. Which Hermite interpolation algorithm solves this? I need to calculate a polynomial. Example: ...
1
vote
3answers
1k views

Linear Algebra Question (Polynomial Interpolation)

Given the data for an experiment: Velocity: 0, 2, 4, 6, 8, 10 Force: 0 , 2.9, 14.8, 39.6, 74.3, 119 (One force value listed below one velocity value in a table) Find an interpolating ...