how to make a text file contanining a dilimited(comma) matrix and not the same sig figs per column

%say I have this matrix:
C=[4,10;5,20;6,30;7,40]
%and I want to develop a txt file such that it contains
4, 10
5, 20
6, 30
7, 40
%the dlmwrite function doesn't let me keep the matrix as it exactly looked but rather ask me to decide on the same # of sig figs for all columns such as:
dlmwrite('mytext.txt', C, 'precision', '%.2f','newline', 'pc');
4.00, 10,00
5.00, 20.00
6.00, 30.00
7.00, 40.00

anyone can help how I can make the txt file look like the following and not how dlmwrite does it:

4, 10
5, 20
6, 30
7, 40

Answer 1

[Fangjun Jiang]

try %d instead of %.2f

Answer 2

[Bruno]

alright thank you it helps a lot so far...but for my actual text file I have numbers containing long decimals such as 2.434993 and it converts into 2.435e^00 I want to be able to keep all numbers including decimals as were

[Fangjun Jiang]

type doc sprintf to see all other format, such as %g, %G. You should be able to find what you want.

[Walter Roberson]

%g is probably the way to go.