Hello Wayne
Im afraid that it is a bit of both.
The good news is that there is a library available for Flowcode which allows it to use 32bit floating point numbers.
The drawback is that the calls to the library are in C code so the functions will not simulate. However they should work perfectly on the hardware.
Also note that the time to complete the calculation will be greatly increased due to the increase in complexity to manage the 32 bit numbers.
Both the library and the example files can be downloaded from here.
http://www.matrixmultimedia.com/support ... .php?t=505
An alternative solution is to use a multiplyer in your calculation. So instead of the range being between 0 and 1 you could use integer values between 0 and 10 or 0 and 100.