2517.sagews

a=5
a

5

2==2

True

2>3

False

2**3

8

2^3

8

5/2

5/2

5//2

2

18%5

3

012

10

09

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_12.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\\n" + _support_.preparse_worksheet_cell(base64.b64decode("MDk="),globals())+"\\n"); execfile(os.path.abspath("___code___.py"))' + '\n', '', 'single') File "", line 1, in <module> File "/tmp/tmp2XKc2E/___code___.py", line 2 _sage_const_09 = Integer(09) ^ SyntaxError: invalid token

sin?

File: /usr/local/sage2/local/lib/python2.6/site-packages/sage/functions/trig.py

Type: <class ‘sage.functions.trig.Function_sin’>

Definition: sin(*args, coerce=True, hold=False, dont_call_method_on_arg=False)

Docstring:

The sine function.

EXAMPLES:

sage: sin(0)
0
sage: sin(x).subs(x==0)
0
sage: sin(2).n(100)
0.90929742682568169539601986591
sage: loads(dumps(sin))
sin

def is_even(n):
   return n%2==0

is_even(2)

True

is_even(123)

False

def myfunction(x):
   if x<0:
       return -1
   elif x==0:
       return 0
   else:
       return 1

myfunction(-2)

-1

myfunction(0)

0

myfunction(3)

1

money=10000
years=0
while money<20000:
   years=years+1
   money=money*1.069

years

11

money

20833.1411965483

n=10;ans=1;
for each in range(1,n+1):
   ans=ans*each

ans

3628800

for eachitem in ['name:vincent','age=30','job:teacher']:
   print eachitem

name:vincent age=30 job:teacher