How to represent the scientific notation?

#1 October 21st, 2006, 04:55 PM

For example, I have a number which is 1.2*10^(-12), how can I write it
in C++?
"double i=1.2*10^(-12)" is an error.

Thanks for your reply.

#2 October 21st, 2006, 04:55 PM

asdf wrote:

Quote:

For example, I have a number which is 1.2*10^(-12), how can I write it
in C++?
"double i=1.2*10^(-12)" is an error.
>
Thanks for your reply.
>

double i(1.2E-12);

Sincerely,

Peter Jansson
http://www.p-jansson.com/
http://www.jansson.net/

#3 October 21st, 2006, 04:55 PM

asdf wrote:

Quote:

For example, I have a number which is 1.2*10^(-12), how can I write it
in C++?
"double i=1.2*10^(-12)" is an error.

That's because '^' is the exclusive or operator. Try:

double i = 1.2e-12;

re: How to represent the scientific notation?