**Block Category:** Random Generator

**Description:** The erlang block generates random
numbers for a standard Erlang distribution. The Erlang distribution is a
continuous probability distribution with wide applicability primarily due to its
relation to the exponential and Gamma distributions. Originally developed to
examine telephone call traffic, the Erlang distribution has been expanded to
consider waiting times in queueing systems in general. The distribution is now
used in the field of stochastic processes. For more information, see http://en.wikipedia.org/wiki/Erlang_distribution)

**Alpha:** Specifies the shape of the curve. You must
specify an integer greater than 0. The variance is proportional to alpha. You
can enter a value in hexadecimal notation or as a C expression.

**Lambda:** Is referred to as the rate parameter. As you
increase the value of Lambda, the variance decreases by lambda^{2}.**
**You can enter a value in hexadecimal notation or as a C expression.

**Label:** Indicates a user-defined block label that appears when
**View > Block Labels** is activated.