Re: Largest float value KDB can handle

[davidcrossey]

Hi ekallivrousis,

The largest decimal value would be the float type as per Data types

q)(2 xexp 1023)*1+1-2 xexp -52 
1.7976931348623157e+308

See here for more Double-precision floating-point format

Also note that the q console can only display float values to 17 significant figures, e.g.

q)P 
7i 
q)1.123456789 
1.123457 
q)P 0 /this is eqiuvalent to P 
17 
q)P 
0i 
q)0.11111111111111112 
0.11111111111111112 
q)1.11111111111111112 
1.1111111111111112

Further reading here:

• Data types | Infinities
• System commands in q | Basics
• Precision Basics

Hope this helps, and thanks for sharing your query on the Community portal!

Kind regards,

David