# Symbolic solve in Octave isn't the same as in MATLAB

2 messages
Open this post in threaded view
|
Report Content as Inappropriate

## Symbolic solve in Octave isn't the same as in MATLAB

 I'm using the following OCTAVE command to solve an equation: syms lambda f = 0.9999999999999999614356461247534*lambda^8 + 0.010136594318889089056437488043559*lambda^7 + 0.000015602822908760063058460837969499*lambda^6 - 0.000000047482181730798751628339904656436*lambda^5 - 1.6804583575154387080270563605856e-10*lambda^4 - 1.9779236089667689638174134679895e-13*lambda^3 - 1.1091457134190232245774382079799e-16*lambda^2 - 2.9823717782777009154185183839051e-20*lambda - 3.202469692780878591525091765936e-24 solve(f==0, lambda) The answer I get is ans = {}(0x0) On the other hand, when I try to use the same command in MATLAB, I get the following answer: ans =  0.0027518081408059183214532684717853 -0.0075831287286429577224408168637228 - 0.00029575583281255452382838468617809 - 0.0001257455668418381216048479457788*i - 0.0016381334730465236707629472401125 - 0.00001988265276086766636376330275894*i - 0.0016381334730465236707629472401125 + 0.00001988265276086766636376330275894*i - 0.00071874755966694673136475169368249 - 0.00019245511322083820223381924903732*i - 0.00029575583281255452382838468617809 + 0.0001257455668418381216048479457788*i - 0.00071874755966694673136475169368249 + 0.00019245511322083820223381924903732*i Is there any way I can make OCTAVE's output equal to MATLAB's output, may be with some tweaks?