What is the best way to save data into a txt file

I have these data in a matrix and I want to save them into a txt file

but I got diffrenet values than what in my matrix it was something like this (in that format)

4.6998106645411053e+02

I used save fuction to try and save my data I want to save is there another way to save data into txt file?

save('new doc.txt','M','-ascii','-double','-tabs') % M is the matrix 
type('new doc.txt')

6540601141.61867	13577823444.2938	28101317825.1798
7569519373.48601	15264346993.3944	30754547025.5567
7387340146.18493	15158865708.5425	31019062144.9410
6251317371.90850	12958424682.6582	26803084252.4354
6734644847.83862	13687649437.8130	27810201085.8812
6849537690.44554	14134553528.2659	29089340966.3231
7385568328.07828	15044694671.3799	30591374573.0212
6381280737.62946	12989993198.7250	26448459532.9256

[dpb]

Show us what

disp M

gives for the same M. I've never seen save not write the correct data; I'd be willing to bet that is what was in M.

There are any number of ways to write text files; if you have need for a given format, then fprintf is your basic choice; the other, simpler ways make assumptions about precision and format to save you the trouble.

[will99]

I was trying to save it in txt file is fprintf the best way for txt format?

[Stephen23]

https://www.mathworks.com/help/matlab/ref/dlmwrite.html

https://www.mathworks.com/help/matlab/text-files.html

Answer 1

[madhan ravi]

If your using 2019a you may try the newly introduced writematrix().

[will99]

Thank you I have Matlab 2018b but I will update it and try the new function