Take the 2-minute tour ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

How do i input the below system of equations in wolfram alpha in order to solve for the unknowns and plot them? If i just say "solve" and input these equations one after the other with a simicolen {solve $2x - y +0z = 0$;$-x + 2y -z = -1$;$0x - 3y + 4z = 4$} it simply throws the value of $x$,$y$ and $z$ without showing any steps nor the plot. I'am Wondering if there's some kind of code that can be written in order to make wolfram alpha understand what i'am talking about. $$\left.\begin{matrix} 2x - y +0z = 0\\ -x + 2y -z = -1\\ 0x - 3y + 4z = 4 \end{matrix}\right\}$$

share|improve this question
    
As far as I know those functions are yet to be implemented for systems of equations. –  Listing Dec 26 '11 at 11:12
    
This works nicely. –  J. M. Dec 26 '11 at 11:33
    
If you enter "equations", you get this. –  Pierre-Yves Gaillard Dec 26 '11 at 11:42
2  
just writing "$2x - y +0z = 0, -x + 2y -z = -1, 0x - 3y + 4z = 4$" gives $(0,0,1)$ as noted under the "examples" which seems to constitute the whole help structure –  yoyo Dec 26 '11 at 14:41

2 Answers 2

up vote 3 down vote accepted

This seemed to work : solve(2x−y+0z=0,−x+2y−z=−1,0x−3y+4z=4,[x,y,z])

share|improve this answer
    
The syntax is Solve[{2 x - y == 0, -x + 2 y - z == -1, -3 y + 4 z == 4}, {x, y, z}] –  user13838 Dec 26 '11 at 13:40
    
This is what i get wolframalpha.com/input/… Doesn't seem to work! –  alok Dec 26 '11 at 14:39
    
@alok Remove the .Nope in the end and it works. –  user13838 Dec 26 '11 at 16:01

In WolframAlpha's Search Bar:

Search for "solve system of equations." Enter your equations.

share|improve this answer
    
Nice and useful! –  Goos Dec 18 '13 at 23:28
    
"Google the answer?" Sort of an odd way to answer the question. –  Vladhagen Dec 18 '13 at 23:39
2  
This answer does not refer to Googling. It's actually quite useful and exactly on-topic. –  Newb Dec 18 '13 at 23:49

protected by Asaf Karagila Dec 18 '13 at 22:54

Thank you for your interest in this question. Because it has attracted low-quality answers, posting an answer now requires 10 reputation on this site.

Would you like to answer one of these unanswered questions instead?

Not the answer you're looking for? Browse other questions tagged or ask your own question.