Appending trailing zeros to integers in a vector

Let's assume I have the following vector:

x = [2, 13, 901, 5, 18, 7, 112, 5931];

And I created a function that first counts the digits using numel function, determines the maximum number of digits (4 digits in this example), then tried to append zeros to the right of each number corresponding to the relation (difference) between the max and the current number of digits, resulting in the following:

x = [2000, 1300, 9010, 5000, 1800, 7000, 1120, 5931];

I couldn't find out a straightforward way to do it.

[Matt J]

Why would you want to do such a thing?

[Maamoun Ahmed]

Hi Matt,

This is just a part of an algorithm, it relies on counting digits and so. You know sometimes you get stuck with tiny programming details that may prevent you from progressing if not solved.

Answer 1

[David Goodmanson]

Hi Maamoun, try

x = [2, 13, 901, 5, 18, 7, 112, 5931];

y = floor(log10(x))
xnew = x.*10.^(max(y)-y)

[Maamoun Ahmed]

Spot on!

Thanks David!