Convert strings in numbers

[Klaus_1963]

In C# I use Double.Parse("1e-234") to convert a string to a (very small or big) number, or Convert.ToString(1e-234) to convert a small double to string (and the result shown is not only "0". It is 1e-234 as it should be).

What are the corresponding commands in PB, which works correctly? StrD and Val are not useable for small or big values...

Thanks, Klaus

[TI-994A]

...Double.Parse("1e-234") to convert a string to a (very small or big) number, or Convert.ToString(1e-234) to convert a small double to string

Hello Klaus_1963. I believe that PureBasic's not able to handle such huge or small numbers.

[TassyJim]

You might have problems displaying the result, but valD does work.

Code: Select all

firstvalueastring.s ="1e234"
firstvalue.d=ValD(firstvalueastring)
secondvalueastring.s ="1.5e230"
secondvalue.d=ValD(secondvalueastring)
result.d=firstvalue/secondvalue
Debug result

I don't think there is a command for displaying numbers in scientific notation (unfortunately)

Doing a search for scientific notation and I found this:

http://www.purebasic.fr/english/viewtop ... c+notation

Jim

[Klaus_1963]

Thanks a lot

Unfortunately, it's not a solution for my problem.

@TassyJim: if you debug a large number e.g. 1e+68 and you like to check it with a debug output, its not possible. Only if you count the zeros

What a pity! Otherwise PB could be used for easy programming scientific applications...

Of course, there is code available to view very small numbers. But it would be much more elegant, if I can use e.g. StrD etc. to view the number in a label field, and the debug output to check the number quickly.

Every other pl I use know such a command with works correctly...

Would be great, if Fred implement this...

Klaus