x,alpha,beta,cumulative,A,B!Returns the beta probability distribution function!is the value between A and B at which to evaluate ...

!x,alpha,beta,cumulative,A,B!!Returns the beta probability distribution function!is the value between A and B at which to evaluate the function!is a parameter to the distribution and must be greater than 0!is a parameter to the distribution and must be greater than 0!is a logical value: for the cumulative distribution function, use TRUE; for the probability density function, use FALSE!is an optional lower bound to the interval of x. If omitted, A = 0!is an optional upper bound to the interval of x. If omitted, B = 1!