ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Sat, 07 Nov 2015 14:19:22 +0100Having trouble solving simultaneous questionshttps://ask.sagemath.org/question/30528/having-trouble-solving-simultaneous-questions/I'm trying to use sagemath cloud to solve simultaneous equations, but I'm having trouble. Can you please look at the code below and see what I'm doing wrong. sagemath cloud gives the following error:
Error in lines 7-7
Traceback (most recent call last):
File "/projects/sage/sage-6.9/local/lib/python2.7/site-packages/smc_sagews/sage_server.py", line 905, in execute
exec compile(block+'\n', '', 'single') in namespace, locals
File "", line 1, in <module>
KeyError: x
My code:
<code>
x, y, x2, y2 = var('x y x2 y2')
eq1 = (x-1)*(x-2) + (y-3)*(y-4) == 0
eq2 = (x2-1)*(x2-2) + (y2-3)*(y2-4) == 0
eq3 = x+x2 == 3
eq4 = y+y2 == 7
sols = solve([eq1,eq2,eq3,eq4],x,y,x2,y2,solution_dict=True)
for soln in sols: print "x: %s, y: %s x2: %s y2: %s"%(soln[x], soln[y],soln[x2],soln[y2])
</code>ameetnsharmaSat, 07 Nov 2015 14:19:22 +0100https://ask.sagemath.org/question/30528/