A colleague was trying out Sage cell and came across the following 
annoyance.

http://sagecell.sagemath.org/?z=eJwrSyzSUC9LLMpMTMpJNVSAsYzgLGM4y0Rdk6s4P6csVUMhGq5DqyLOWEEboQ_IN0LiG2tVIPFMFGxtFQxidRQqFDQB414nfw==&lang=sage

In particular, the answer

[x == -1/2*(I*sqrt(3) + 1)*(1/6*sqrt(-1/3*variable2^2*variable3^2 + 
4/3*variable1*variable3^3 + 9*variable1^2*variable4^2 + 2/3*(2*variable2^3 
- 9*variable1*variable2*variable3)*variable4)/variable1^2 - 
1/54*(2*variable2^3 - 9*variable1*variable2*variable3 + 
27*variable1^2*variable4)/variable1^3)^(1/3) - 1/3*variable2/variable1 - 
1/18*(variable2^2 - 3*variable1*variable3)*(-I*sqrt(3) + 
1)/(variable1^2*(1/6*sqrt(-1/3*variable2^2*variable3^2 + 
4/3*variable1*variable3^3 + 9*variable1^2*variable4^2 + 2/3*(2*variable2^3 
- 9*variable1*variable2*variable3)*variable4)/variable1^2 - 
1/54*(2*variable2^3 - 9*variable1*variable2*variable3 + 
27*variable1^2*variable4)/variable1^3)^(1/3)), x == -1/2*(-I*sqrt(3) + 
1)*(1/6*sqrt(-1/3*variable2^2*variable3^2 + 4/3*variable1*variable3^3 + 
9*variable1^2*variable4^2 + 2/3*(2*variable2^3 - 
9*variable1*variable2*variable3)*variable4)/variable1^2 - 
1/54*(2*variable2^3 - 9*variable1*variable2*variable3 + 
27*variable1^2*variable4)/variable1^3)^(1/3) - 1/3*variable2/variable1 - 
1/18*(variable2^2 - 3*variable1*variable3)*(I*sqrt(3) + 
1)/(variable1^2*(1/6*sqrt(-1/3*variable2^2*variable3^2 + 
4/3*variable1*variable3^3 + 9*variable1^2*variable4^2 + 2/3*(2*variable2^3 
- 9*variable1*variable2*variable3)*variable4)/variable1^2 - 
1/54*(2*variable2^3 - 9*variable1*variable2*variable3 + 
27*variable1^2*variable4)/variable1^3)^(1/3)), x == 
(1/6*sqrt(-1/3*variable2^2*variable3^2 + 4/3*variable1*variable3^3 + 
9*variable1^2*variable4^2 + 2/3*(2*variable2^3 - 
9*variable1*variable2*variable3)*variable4)/variable1^2 - 
1/54*(2*variable2^3 - 9*variable1*variable2*variable3 + 
27*variable1^2*variable4)/variable1^3)^(1/3) - 1/3*variable2/variable1 + 
1/9*(variable2^2 - 
3*variable1*variable3)/(variable1^2*(1/6*sqrt(-1/3*variable2^2*variable3^2 
+ 4/3*variable1*variable3^3 + 9*variable1^2*variable4^2 + 
2/3*(2*variable2^3 - 
9*variable1*variable2*variable3)*variable4)/variable1^2 - 
1/54*(2*variable2^3 - 9*variable1*variable2*variable3 + 
27*variable1^2*variable4)/variable1^3)^(1/3))]

has over two thousand characters in ONE line.

Note that in your email or web reader, there is natural wrapping that 
happens, as well as command line Sage and sagenb.  But not in Sage cell. 
 Is there any default that would be appropriate here?  I'm sure there is 
something nice for embedded instances from CodeMirror, my point is that the 
default Sage cell page behaves this way.  It makes it nearly unusable for 
certain kinds of settings.

Thanks for any ideas,
- kcrisman

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