4.25.2 Greatest hits from previous weeks

4.25.2.1 Calculate the 2D Fourier transform of an Image

https://mathematica.stackexchange.com/questions/29203/calculate-the-2d-fourier-transform-of-an-image

 
I am new to Mathematica, and using version 8.0. 
 
I would like to calculate the 2D Fourier Transform of an Image with Mathematica and plot the magnitude and phase spectrum, as well as reconstruct the  ...
 

- asked by user8727 (5 votes), answered by Nasser (27 votes)

4.25.2.2 Entering numbers in Scientific Notation?

https://mathematica.stackexchange.com/questions/36792/entering-numbers-in-scientific-notation

 
I need to play with a lot of powers such as 10^-3. 1E-3 does not work for it. Is there any short form for it?
 

- asked by hhh (32 votes), answered by Rahul (43 votes)