Using the command num2str

When I run:

num2str(5.7831e-04)

I get: '0.00057831'

How can I obtain '5.7831e-04' instead?

Answer 1

[Ameer Hamza]

Use sprintf()

sprintf('%.4e', 5.7831e-04)

[Khalid Alsinan]

Thanks Ameer, but I don't want to display it.. I just want to store it. Is there another way other than sprintf?

[Khalid Alsinan]

Never mind! Thank you so much Ameer!!

[Ameer Hamza]

Storing a number is not a matter of format. Inside memory, it will be saved as a double datatype with same bits. The format is only important if you want to print the number.