3418.sagews

G = plot(x, -5, 5, thickness=5, color='green')
P = polygon([[1,2], [5,6], [5,0]], color='red')
G + P  # show it

P+G

1/3 * 2/1

2/3

temp = 0
for i in range(1,11):
    print temp
    temp = temp+3+(1/3.0)

0 3.33333333333333 6.66666666666667 10.0000000000000 13.3333333333333 16.6666666666667 20.0000000000000 23.3333333333333 26.6666666666667 30.0000000000000

from turtle import *
forward(30)

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_6.py", line 10, in <module> exec compile(u"print _support_.syseval(python, u'from turtle import *\\nforward(30)', __SAGE_TMP_DIR__)" + '\n', '', 'single') File "", line 1, in <module> File "/sagenb/sage_install/sage-4.7/devel/rkirov-flask/sagenb/misc/support.py", line 473, in syseval return system.eval(cmd, sage_globals, locals = sage_globals) File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/site-packages/sage/misc/python.py", line 56, in eval eval(z, globals) File "", line 1, in <module> File "<string>", line 1, in forward File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/turtle.py", line 3715, in _getpen Turtle._pen = Turtle() File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/turtle.py", line 3704, in __init__ Turtle._screen = Screen() File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/turtle.py", line 3553, in Screen Turtle._screen = _Screen() File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/turtle.py", line 3569, in __init__ _Screen._root = self._root = _Root() File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/turtle.py", line 458, in __init__ TK.Tk.__init__(self) File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/Tkinter.py", line 1643, in __init__ self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: no display name and no $DISPLAY environment variable

33/10.0

3.30000000000000

plot(sin,-pi,pi)

from turtle import *
forward(100)

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_3.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\\n" + _support_.preparse_worksheet_cell(base64.b64decode("ZnJvbSB0dXJ0bGUgaW1wb3J0ICoKZm9yd2FyZCgxMDAp"),globals())+"\\n"); execfile(os.path.abspath("___code___.py"))' + '\n', '', 'single') File "", line 1, in <module> File "/tmp/tmpsdFaal/___code___.py", line 4, in <module> exec compile(u'forward(_sage_const_100 )' + '\n', '', 'single') File "", line 1, in <module> File "<string>", line 1, in forward File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/turtle.py", line 3715, in _getpen Turtle._pen = Turtle() File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/turtle.py", line 3704, in __init__ Turtle._screen = Screen() File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/turtle.py", line 3553, in Screen Turtle._screen = _Screen() File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/turtle.py", line 3569, in __init__ _Screen._root = self._root = _Root() File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/turtle.py", line 458, in __init__ TK.Tk.__init__(self) File "/sagenb/sage_install/sage-4.7/local/lib/python2.6/lib-tk/Tkinter.py", line 1643, in __init__ self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: no display name and no $DISPLAY environment variable