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**sysprob**(system_name {; arglist})

Steady-state unavailability of the system if steady-state unavailability is given for each component, or the probability of the system failure if probability of failure is given for each component
**pcont**(system_name {; arglist})

- The continuous part of the exponomial
**pzero**(system_name {; arglist})

- The value of the exponomial at t = 0
**pinf**(system_name {; arglist})

- The value of the exponomial at t =
**mean**(system_name {; arglist})

- The expectation of the exponomial. If unreliability is given, this function gives the system's mean time to failure without repair
**variance**(system_name {; arglist})

- The variance of the exponomial which is used in **pconf**
**tvalue**(system_name {; arglist})

- The value of the exponomial at time t
**cdf**(system_name {; arglist})

- Display the exponomial
**mttf**(system_name {; arglist})

- The mean time to failure given repair rate for each component
**minpaths**(system_name {; arglist})

- The set of minpaths

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