

Description: Returns the Weibull failure rate at a given time.
Syntax: weibullfr(x, Beta, Eta, Gamma)
x is the time at which the function is evaluated.
Beta is the shape parameter of the Weibull distribution.
Eta is the scale parameter of the Weibull distribution.
Gamma is the location parameter of the Weibull distribution.
Remarks:
x, Beta, Eta and Gamma must be numerical.
x, Beta and Eta must be > 0.
All parameter values can include:
Numerical values
Standard operands (+, -, *, /)
Predefined mathematical functions (exp, log, sin, etc.)
References to any Synthesis Workbooks
Example:
weibullfr(20, 1.65, 103.53, -9.92)
Returns:
0.007133
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