[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[avr-gcc-list] Is there anything special about using the float or doubl
[avr-gcc-list] Is there anything special about using the float or double data type
Wed, 24 Sep 2003 11:23:24 +1200
Is there anything special about using the float or double data types in
I have a look through the AVRLIB docs and it only mentions the special
math library. However I assume that the absence of anything on floats or
doubles to mean they just work!
One thing I would like to print the value of the float result without
using the printf libraries. Are there any ftoa() type functions. Maybe I
should simply cast the result back to int and print it that way.
I'm wanting to do a tiny bit of floating point math to calculate the
speed of a model railroad locomotive going past a couple of IR beam
sensors at a fixed spacing and time the period between beam breaks, to
get the time and then calculate the scaled speed.
This requires the following:
Speed = distance * scale factor / time
As all these are small values on a model I think I need to do this using
Phone (Home) +64 (7) 854 0819
- [avr-gcc-list] Is there anything special about using the float or double data type,
Alex Shepherd <=