Numbers greater than INF in matlab

[SamuraiJack]

Hello all,

I need to use numbers that are greater than 10e308 in matlab. Apparently, 52 bit MATLAB does not recognize them and uses INF instead of the big number. I googled for it and only got some vague answers how to deal with it (something about file exchange...).Help! please...

thanks.

 

[jhae2.718]

MATLAB by default does not support larger floating point types than a double (technically IEEE 754-2008 binary64).

http://www.mathworks.com/support/solutions/en/data/1-8SQ4LB/index.html?product=ML&solution=1-8SQ4LB

 

[NemoReally]

Hello all,

I need to use numbers that are greater than 10e308 in matlab. Apparently, 52 bit MATLAB does not recognize them and uses INF instead of the big number. I googled for it and only got some vague answers how to deal with it (something about file exchange...).Help! please...

thanks.

You need the Symbolic Toolbox. If your needs are "simple" enough, then you could write an Arbitrary Precision ('BigNum') library (using, say, a vector to hold numbers on a one digit per element basis). ... or google for one, maybe this http://www.mathworks.com/matlabcentral/fileexchange/22725-variable-precision-integer-arithmetic ?

 

[SamuraiJack]

Thank you. This is very helpful. I'm going to try it now.

 

[alphy]

I understand the importance of working with large numbers in MATLAB for various calculations and simulations. It is true that MATLAB has a limit of 10e308 for numbers, which can be limiting in certain cases. However, there are ways to work around this limitation.

One option is to use the Symbolic Math Toolbox, which allows for working with arbitrarily large numbers in MATLAB. Alternatively, you can also use the Variable Precision Arithmetic Toolbox, which provides functions for working with numbers of any size. Both of these toolboxes are available for purchase from MathWorks or through the MATLAB File Exchange.

Another option is to use the Decimal or Double-Double data types instead of the default double precision data type. These data types have a higher range and can handle larger numbers in MATLAB. You can find more information on these data types in the MATLAB documentation.

In conclusion, while MATLAB does have a limit for numbers, there are several ways to work around this limitation and use numbers greater than 10e308. I hope this helps in your research and calculations. Best of luck!