# RND

Math

RND

Returns a random number from the range 0 to 1.

' RND IFF and DEF.bas SmallBASIC 0.12.2 [B+=MGA] 2016-03-24 ' RND - returns a number from 0 to almost 1 ' IFF - IFF(conditional statement to evaluate, return this if evaluates true, returns this if evaluates false) ' DEF - one line function definition FOR i=1 TO 20 'need a random true/false, subst 0 or 1 (or -1) ;) ? IFF(rnd<.5,"True ","False "); '<======================== RND and IFF next ?:? FOR i=1 TO 10 'need a random direction back and forth dir=IFF(RND<.5,-360*RND,360*RND) '<======================== RND and IFF ? USING " ####.0000"; dir; NEXT ?:? 'check distribution of random numbers between low and high (inclusive) 'here is that function DEF rand(lo,hi)=(RND*(hi-lo+1))\\1+lo '<======================= RND and DEF low=1100:high=1150 DIM a(low-1 TO high+1) FOR i=1 to 1000 index=rand(low,high) a(index)++ NEXT total=0 FOR i=low-1 TO high+1 ? i;":";a(i);", "; total+=a(i) IF i MOD 10=9 THEN ? NEXT ?:? "total trials=";total 'result: pretty even spread between two numbers inclusive. PAUSE