Strange Behavior of power operator (^) in Cscript
john geddes from Australia  [6 posts]
11 year
 Hi again! I've noticed strange behavior with the power operator "^". From my intuition: 2^2 = 4, 2^3=8 -1^2 = 1 etc... What i noticed is that in cscript, it does not behave like that at all. I cannot figure out what the "^" is doing. I get things like: 2^2 = 0, -2^2 = -4, -3^2 = -1, 2^3 = 1 etc... just odd... For reference, this is how I'm checking them: int test = 2^3; printf("%d",test); Also, i can't seem to find if the Cscript has an 'absolute' function such as "a = |a|" (coming from Matlab where it's "a = abs(a)") Which brings me to my next point, I can't seem to find a complete list of math functions available to use in the scripts. Am I not looking in the right place? Thanks!
Anonymous 11 year
 Botagar, In C the "^" is not a power operator but an exclusive OR ... otherwise know as XOR. The power operator is typically a function like the abs. printf("%f\r\n", pow(2,2)); printf("%f\r\n", fabs(-2)); The CScript module uses PicoC from http://code.google.com/p/picoc/ which you can find some more information about. Its not much so if you run into issues let us know. STeven.
Anonymous 11 year
 We also added a list at the bottom of http://www.roborealm.com/help/CScript_Program.php as to which C functions are present in PicoC. STeven.
john geddes from Australia  [6 posts] 11 year
 Ahh thanks a tonne again! I got too used to matlab and forgot that ^ also meant XOR. also cheers for the list!

 This forum thread has been closed due to inactivity (more than 4 months) or number of replies (more than 50 messages). Please start a New Post and enter a new forum thread with the appropriate title.