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Need help solving a non linear equation

SM_10287580
1-Newbie
1-Newbie
‎Apr 21, 2022 12:22 PM
‎Apr 21, 2022 12:22 PM

Need help solving a non linear equation

Need help with part c of the question, I have attached my Mathcad file where I have tried to solve for radius with an effectiveness factor of 0.97. Please Help!

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Try_1.xmcd
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Werner_E
24-Ruby V
24-Ruby V
(To:SM_10287580)
‎Apr 21, 2022 03:55 PM
‎Apr 21, 2022 03:55 PM

You can't use a function derived by the numerical odesolve for symbolic calculations like "solve".
You rather should use either a (numerical) solve block with "find" or the "root" function.

 

BTW, in the equation you'd like to solve for RR, shouldn't it be W(RR) instead of W(R)?

 

Werner_E_0-1650572158597.png

 

WE_20220421_Try_1.xmcdz
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