renesto's blog

There are two ways to represent float in nesc. One way, is to do it through by convention using the exponent and mantissa, where you need to use 2^exponent. The function that does that is called powf(). The problem with using that function is that it is reaaaaallly slow. [QUOTE] ----8<---- span=""> DbgOut_P20_ON; r = logf((float)v / 10000.0); // takes up about 10 ms (!!) DbgOut_P20_OFF; ----8<---- span=""> and a ----8<---- span=""> DbgOut_P20_ON; r = powf (10,(float)v / 10000.0); // takes up about 32 ms (!!!!!!) DbgOut_P20_OFF; ----8<---- span=""> [/QUOTE] In case you need to have fast response, this function might not be your choice. One way to optimize the speed of those operations are: "I'd like to mention that pow (a,b) is MUCH harder to implement than exp(b). Use the latter whenever possible. In particular, if a is fixed, use exp(b * log(a)) rather than pow (a,b). (

Several times I badly needed the connection between to PCs and I never actually managed to make it working :( One thing I always forget to set is that both PCs have the same Workgroup, besides the part where you set your folder to be shared among PCs in the network.