Dear all,
When I use solve, the variable to be solved for sometimes appears on
both sides of the solution. Example:
----------------------------------------------------------------------
| SAGE Version 3.0.2, Release Date: 2008-05-24 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage:
var('wcnew,epsln,ysnew,delyu,sumsunew,sunlayersnew,delyu,nlayers,ysnew,cz,zr')
(wcnew,
epsln,
ysnew,
delyu,
sumsunew,
sunlayersnew,
delyu,
nlayers,
ysnew,
cz,
zr)
sage: solve(wcnew==epsln*(ysnew + ((delyu*sumsunew +
....: sunlayersnew*(delyu*(1 - nlayers) + sqrt((cz -
ysnew)*(cz - zr))))*
....: sqrt((cz - ysnew)*(cz - zr)))/(cz - zr)),ysnew)
[ysnew == (-delyu*epsln*(nlayers*sunlayersnew - sunlayersnew -
sumsunew)*sqrt((ysnew - cz)*zr - cz*ysnew + cz^2) -
cz*(epsln*sunlayersnew*zr + wcnew) + wcnew*zr +
cz^2*epsln*sunlayersnew)/(epsln*(zr - sunlayersnew*zr) +
cz*epsln*(sunlayersnew - 1))]
In the above example, ysnew still appears in the sqrt terms on the
right hand side. Does anyone know how such an equation can be solved?
Thanks in advance!
Stan
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