Hi everyone, I'd like to solve a (symbolic) system of linear equations in Wolfram Alpha in 4 variables (A,B,C,D), with 3 additional parameters (Y,V,T). I gave this command, but Wolfram Alpha doesn't understand what to do:
solve A*T^5+B*T^4+C*T^3+D*T^2=0, 5*A*T^4+4*B*T^3+3*C*T^2+2*D*T=0, A/6*T^6+B/5*T^5+C/4*T^4+D/3*T^3=-V, 1/42*A*T^7+1/30*B*T^6+1/20*C*T^5+1/12*D*T^4=Y for A,B,C,D
Instead, if I type a similar command for a similar system but with 3 variables A,B,C, for example
solve A*T^5+B*T^4+C*T^3=Y,5*A*T^4+4*B*T^3+3*C*T^2=V,20*A*T^3+12*B*T^2+6*C*T=0 for A,B,C
Wolphram Alpha understands and provides a parametric solution.
Do you know where the problem is? I think the two commands are similar, so I cannot understan why it doesn't work.
Please let me know if you have any ideas. Cheers,
E.
