Re: Needing A header file
 

That is incorrect, you just are not aware of another way. Use fixed-point integer notation.

An example variable declaration could be:

integer max_v; // 2FX12 (0x1000 = 1 foot/sec)

In the above example, the resolution of the variable for maximum velocity is
0.003 inches per second and the variable ranges from + +7.99975 to -7.99975 feet per second.

Choose your number system with care and beware of overflowing variables in your calculations. Also realize that 0x8000 (negative zero) is not a number!

I assure you that the 2004 Bobcat has no floating-point variables and, sensor accuracy notwithstanding, the mathematical accuracy of our position is less than a tenth of an inch.

Best of luck,

Re: Needing A header file
 

Can you give me a tutorial or example where I can learn more about this? ALl i've learned so far for decimal points is floating point data types. APpreciate any info.

Re: Needing A header file
 

Jared,

Unfortunately, everything I have is in books. You might try to google it.

Floating Point Tutorial
 

Did a Yahoo search and got for "floating point" and got this tutorial web address: http://www.cs.utah.edu/~zachary/isp/applets/FP/FP.html

Most important thing about floating point:

DO NOT use unless absolutely neccessary. Any computation with floating-point data (like floats or doubles) is much slower than the same operation with integers (like chars, ints, and longs).

Floating-point data is different than other data because the number that the data itself represents is not directly stored. Instead, a mantissa, sign, and exponent are stored. This is sort of like scientific notation where you know the exponent which for the base 10 and the multiplier. In floating-point, you store every number as:

Re: Needing A header file
 

Did a quick google and found this: http://www.embedded.com/98/9804fe2.htm

It should get you started...