Message Boards Message Boards


Solve a system with 3 variables and 3 equations using W|A?

Posted 5 months ago
2 Replies
0 Total Likes

I get the message "Wolfram|Alpha doesn't understand your query" when I try to input this equation:

a+x+g=0, b+y+h=0, c+z+j=0, a2+b2+c2=R2, x2+y2+z2=R2, g2+h2+j2=R2, R=1, x=1

It's a 3 variables 3 equations system about 3 vectors (x,y,z), (a,b,c), (g,h,j), distributed in a 3d sphere. The constraints are radius = 1 and x = 1. I want to solve it for y,z; a,b,c and g,h,j.

Can someone explain to me why Wolfram|Alpha isn't understanding the input?


2 Replies
Posted 5 months ago

If I have correctly understood your problem, you should type: a+x+g=0, b+y+h=0, c+z+j=0, a^2+b^2+c^2=R^2, x^2+y^2+z^2=R^2, g^2+h^2+j^2=R^2, R=1, x=1

Posted 5 months ago

The R=1 and x=1 appear to confuse WolframAlpha.


solve a+1+g=0, b+y+h=0, c+z+j=0, a^2+b^2+c^2=1, 1+y^2+z^2=1 for real y


will have WolframAlpha solve for real values of y and solve for all the other variables at the same time.

Reply to this discussion
Community posts can be styled and formatted using the Markdown syntax.
Reply Preview
or Discard

Group Abstract Group Abstract