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List:       scilab-users
Subject:    Re: [Scilab-users] Problems with plot 3d. Function fplot3d
From:       "Dang, Christophe" <Christophe.Dang () sidel ! com>
Date:       2013-06-10 7:15:24
Message-ID: 3B5FFC67498DFF49AE7271A584867D16F31D8C53D6 () 301EX00100 ! sidel ! com
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Hello, 

De la part de Ubirajara Marques da Cruz
Envoyé : vendredi 7 juin 2013 22:47

> deff('z=f(x,y)','z=( (1-exp(-5*x))-y)^(1/3)')

If you want the real 3rd roots , you should use nthroot()

// **********

deff("z=f(x,y)","z= nthroot((1-exp(-5*x))-y, 3)")

// **********

But the calculation is much longer...

Regards

-- 
Christophe Dang Ngoc Chan
Mechanical calculation engineer
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