Long double usage in math library

Irfan Ahmad

Prodigy 110 points

Other Parts Discussed in Thread: CONTROLSUITE

Hi,

I need to use the extensive math functions with long double (float 64) data type in my application. But, whenever I use them the linker prompts with an error "unresolved symbols remain".
Secondly, many of the important math function are missing in "math.h" like round etc.
I am working under following environment;
- Code Composer Studio v 3.3.38.2
- Code Generation Tool v 6.2.4
- Real Time Support Library (rts2800_fpu32.lib)
- Include files; math.h
Please help in resolving the issue.

over 11 years ago

0 Gautam Iyer over 11 years ago

Guru 192875 points

Hi Irfan,

Why don't you use iQMath library?

Here's the reference doc: 0003.IQmath_Quickstart.pdf

And you can find the library here:

C:\ti\controlSUITE\libs\math\IQmath\v160

Regards,

Gautam

0 Irfan Ahmad over 11 years ago in reply to Gautam Iyer

Prodigy 110 points

Thanks Gautam,

I am already looking at it (IQMath library), but is their any other way to populate math.h with these data types (long double) or we can use standard math.h which includes all the functions and for all data types.

BR,

Irfan

0 Gautam Iyer over 11 years ago in reply to Irfan Ahmad

Guru 192875 points

Irfan, I recommended you IQMath lib because it will reduce the computation time significantly, thus reducing the load on the controller. As, I've personally never preferred using math.h library, so won't be able to comment on the same but IQMath would surely solve your issue.

Regards,

Gautam

0 Irfan Ahmad over 11 years ago in reply to Gautam Iyer

Prodigy 110 points

Thanks Gautam,

I am going to use IQMath lib, but if you find anything related please let me know.

BR,

Irfan

0 Gautam Iyer over 11 years ago in reply to Irfan Ahmad

Guru 192875 points

Sure Irfan, always here to help!

Good luck and Regards,

Gautam

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Long double usage in math library