Mathematica lets you import data in any format, then manipulate it using powerful and flexible functions.
You can apply any Mathematica function to the data.
Here the data is successively shifted to the right.
Here is a contour plot of the data.
This plots the data keeping only some Fourier components.
This is the distribution of gray levels in the data.
Here is a 3D plot based on the data.
Mathematica can work with data of any kind â" not just numbers.