solve returns Empty sym: 0-by-1 answer
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syms h
Tcz=20
To=533.3
k=155
rho=2680
c=963
a=k/(rho*c)
E2=73.1==To+(Tcz-To)*(1-exp((h*h*a*90)/(k*k))*(1-erf((h/k)*(sqrt(a*90)))))
assume(h>0)
[htc]=solve(E2,h)
the code returns
htc=
Empty sym: 0-by-1
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답변 (1개)
Pavan Guntha
2021년 11월 19일
Hi,
The solve function returns an empty object if there isn't any solution to the equation. For instance if the equation is changed as shown below,
E2 = 730 == To+(Tcz-To)*(1-exp((h*h*a*90)/(k*k))*(1-erf((h/k)*(sqrt(a*90)))))
It returns the following solution:
htc =
-555.33097392244426184617865401959
Hope it helps!
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