How can I make a function that calculates the values of the linear interpolation ?

How can I make a function that calculates the values of the linear interpolation function f(x) = a.x + b for an interval of x values given by Xl = [xmin,xmax] where n >= 1 is the number of intervals into which the interval Xl will be divided?

[Walter Roberson]

linspace()

Answer 1

[Gokul Nath S J]

Hi Ihor,

As per my understanding, if given minimum and maximum values of x, you are interested in finding the linear interpolation. Please find the following function code for your reference,

function interpolated_values = linear_interpolation(xmin, xmax, a, b) 

    N = 1000; 

    x = linspace(xmin, xmax, N); 

    interpolated_values = a*x + b; 

end 

Also, the value of a and b are customizable and can be defined inside the function. I assumed the number of points to be 1000.

Hope this helps!