I would like to to sole the linear equations
F1=F2=f3=F4 with 4 unknowns T1, T2, T3 and T4
I can do it in Mathcad (given-find). but cannot in SMath ;-(
Help me please!

See please the Mathcad Calculation Server
http://twt.mpei.ac.ru/MCS/Worksheets/Thermal/Heat-Flow-3radius.xmcd
my SMath try in attach and
Lambda3.sm (434 KiB) downloaded 22 time(s).
the picture

Hi. Here two options for solve the system.

Lambda3.sm (452 KiB) downloaded 30 time(s).

Best regards.
Alvaro.

Wrote

Hi. Here two options for solve the system.

Lambda3.sm (452 KiB) downloaded 30 time(s).

Best regards.
Alvaro.

Thanks, Alvaro!
But I have so

I see Alvaro has beaten me to it, but here's my approach anyway.

Lambda3b.sm (470 KiB) downloaded 26 time(s).

Thanks to all!

My solution in attach
Lambda3.sm (265 KiB) downloaded 29 time(s).