Template:Lognormal distribution reliable life: Difference between revisions

Latest revision as of 05:28, 13 August 2012

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-===The Lognormal Reliable Life===
+#REDIRECT [[Lognormal Distribution Functions]]
-As there is no closed-form solution for the lognormal reliability equation, no closed-form solution exists for the lognormal reliable life either.  In order to determine this value, one must solve the equation:
-::<math>{{R}_{T}}=\int_{\text{ln}(T)}^{\infty }\frac{1}{{{\sigma }_{{{T}'}}}\sqrt{2\pi }}{{e}^{-\tfrac{1}{2}{{\left( \tfrac{s-{\mu }'}{{{\sigma }_{{{T}'}}}} \right)}^{2}}}}ds</math>
-for <math>T</math> .