If I want to solve an equation with linalg.solve I must know the equation, right?
From help: "solve(a, b) Return the solution of a*x = b"
But if I don't know - or if I don't want to look - the equation for x, how can I solve it? I will import equations from a file. []'s. ----- Original Message ----- From: Michael Nandris To: SciPy Users List Sent: Tuesday, November 06, 2007 10:42 AM Subject: Re: [SciPy-user] Solve These examples for solving equations are in scipy_tutorial.pdf from scipy import mat, linalg """ Solves three simultaneous equations: x + 3y + 5z = 10 2x + 5y + z = 8 2x + 3y + 8z =3 """ XYparameters = mat('[1 3 5; 2 5 1; 2 3 8]') constants = mat('[10; 8; 3]') print linalg.solve( XYparameters, constants ) # array([[-9.28], # [ 5.16], # [ 0.76]]) """ Solves two simultaneous equations: 5x + 2y - 9 = 0 3x + 4y - 4 = 0 """ XYparameters = mat('[5 2; 3 4]') constants = mat('[9; 4]') print linalg.solve( XYparameters, constants ) # should print (2,-0.5) Eduardo Rodrigues <elr1979@gmail.com> wrote: Hi, I am starting in Python. I usually use Maple and I am with a problem to do the same project in Python. I would like to solve an equation like x+y+1=0 for x. In Maple I use "solve(x+y+1=0,x);". Do exist a similar command in Python/NumPy/SciPy? Regards, Eduardo. _______________________________________________ SciPy-user mailing list SciPy-user@scipy.org http://projects.scipy.org/mailman/listinfo/scipy-user ------------------------------------------------------------------------------ _______________________________________________ SciPy-user mailing list SciPy-user@scipy.org http://projects.scipy.org/mailman/listinfo/scipy-user