2515.sagews

implicit_plot3d(x^2+y^2+z^2==4, (x, -3, 3), (y, -3,3), (z, -3,3))

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_2.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\\n" + _support_.preparse_worksheet_cell(base64.b64decode("aW1wbGljaXRfcGxvdDNkKHheMit5XjIrel4yPT00LCAoeCwgLTMsIDMpLCAoeSwgLTMsMyksICh6LCAtMywzKSk="),globals())+"\\n"); execfile(os.path.abspath("___code___.py"))' + '\n', '', 'single') File "", line 1, in <module> File "/tmp/tmpH4bnE6/___code___.py", line 3, in <module> exec compile(u'implicit_plot3d(x**_sage_const_2 +y**_sage_const_2 +z**_sage_const_2 ==_sage_const_4 , (x, -_sage_const_3 , _sage_const_3 ), (y, -_sage_const_3 ,_sage_const_3 ), (z, -_sage_const_3 ,_sage_const_3 ))' + '\n', '', 'single') File "", line 1, in <module> NameError: name 'y' is not defined

var('x,y,z')

(x, y, z)

implicit_plot3d(x^2+y^2+z^2==4, (x, -3, 3), (y, -3,3), (z, -3,3))