How to round a matrix to n decimal places

Hi,

I am trying to round the matrix to 2 decimal places a=[1.232323 2.23232323; 3.23232323 4.2323232332] round(a,2)

I am getting the error too many input arguments. Is there a work around?

Answer 1

[Star Strider]

You can create your own version of the ‘new’ round:

roundn = @(x,n) round(x*10^n)./10^n;

q = roundn(pi,2)

q =
         3.14

[Yasmin Samy]

Hi!

This worked fine but for some reason i get trailing zeros in the vector. the original data is input as 4 decimal places. I would like to display the data in the table with 2 decimal places, but i keep getting trailing zeros. Any idea how i can solve this??

Thanks

[Star Strider]

My pleasure.

Use the format (link) function.

Specifically:

format bank

or

format short g

would likely do what you want.

Note that table objects usually inherit the existing format settings.

[Yasmin Samy]

I tried that but in the uitable it totally ignores that and i still get those trailing zeros. Besides bank is 2d and short g is like 5 decimal places.

[Yasmin Samy]

Is there no way to round and truncate maybe the numbers?

[Yasmin Samy]

Found it!!!

after rounding, convert num2cell and then use

fun3 = @(x) sprintf('%0.3f', x);