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how to do some evaluation in quadruple precision arithmetic

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hi. im using Matlab version 7.9.0.(R2009b) and i would like to do some evaluations with unit roundoff u=2.5*10^32, that is in quadruple precision arithmetic. How can i do that or what should i change? thank you.

Respuesta aceptada

Sean de Wolski
Sean de Wolski el 19 de Feb. de 2013
Either use VPA in the Symbolic Math Toolbox or John's HPF class:

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Pavel Holoborodko
Pavel Holoborodko el 23 de Jul. de 2014
Or try Advanpix toolbox if you need high-speed quadruple precision.


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