GAMMADIST function
    GAMMADIST(Value,
    Alpha, Beta, IsCumulative) GAMMADIST(Value;
    Alpha; Beta; IsCumulative)
  
  Value
        Number or { Number }
      
      A value at which to evaluate the function.
Alpha
        Number or { Number }
      
      A parameter to the distribution.
Beta
        Number or { Number }
      
      A parameter to the distribution.
IsCumulative
        Logical or { Logical }
      
      FALSE to calculate the probability density function and TRUE to calculate the cumulative distribution function.
Returns
        Number or { Number }
      
      A value for a Gamma distribution.
This function is a compatibility alias for GAMMA.DIST. Use GAMMA.DIST for new projects.