scratch.sagews

import julia as j0; reload(j0); julia = j0.Julia()

<module 'julia' from './julia.py'>

%julia
function hypot(x,y)
  x = abs(x)
  y = abs(y)
  if x > y
    r = y/x
    return x*sqrt(1+r*r)
  end
  if y == 0
    return zero(x)
  end
  r = x/y
  return y*sqrt(1+r*r)
end

hypot (generic function with 1 method)

%julia
hypot(2,3)

3.6055512754639896

%julia
println("Greetings! 你好! 안녕하세요?")

Greetings! 你好! 안녕하세요?

s = 'println("Greetings! 你好! 안녕하세요?")'

type(s)

<type 'str'>

t = u'println("Greetings! 你好! 안녕하세요?")'

type(t)

<type 'unicode'>

julia.eval(t.encode('utf8'))

println("Greetings! 你好! 안녕하세요?") __ans__=ans;println("8115930f-3f2a-4748-93fe-d835c53cbab4");ans=__ans__; 'Greetings! \xe4\xbd\xa0\xe5\xa5\xbd! \xec\x95\x88\xeb\x85\x95\xed\x95\x98\xec\x84\xb8\xec\x9a\x94?'

t.decode('utf8')

Error in lines 1-1 Traceback (most recent call last): File "/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/.sagemathcloud/sage_server.py", line 862, in execute exec compile(block+'\n', '', 'single') in namespace, locals File "", line 1, in <module> File "/usr/local/sage/sage-6.3.beta6/local/lib/python/encodings/utf_8.py", line 16, in decode return codecs.utf_8_decode(input, errors, True) UnicodeEncodeError: 'ascii' codec can't encode characters in position 20-21: ordinal not in range(128)

︠36074ac2-b489-43a5-8745-d20f4e8777f0︠
print julia.eval('println("Greetings! 你好! 안녕하세요?")')

println("Greetings! 你好! 안녕하세요?") __ans__=ans;println("9b380974-4103-4580-8bde-ad978ab06c07");ans=__ans__; Greetings! 你好! 안녕하세요?

%julia

︠4c2100d8-b3a6-436e-a967-09b58147f4e4︠
%julia
2+3

5

%julia

i = 1;
while i <= 5
    println(i)
    i += 1
end

1 2 3 4 5

%julia
while i <= 10
    println(i)
    i += 1
end

6 7 8 9 10

m = julia('i')._sage_(); m

11

type(m)

<type 'sage.rings.integer.Integer'>

%timeit(number=50) julia.eval('2+3')

50 loops, best of 3: 3.08 ms per loop

%julia
a = "lksdjf
dlfjasdflj"
a

"lksdjf\ndlfjasdflj"

%julia
a = "lksjdfdf

Error in lines 1-1 Traceback (most recent call last): File "/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/.sagemathcloud/sage_server.py", line 862, in execute exec compile(block+'\n', '', 'single') in namespace, locals File "", line 1, in <module> File "/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/.sagemathcloud/sage_server.py", line 897, in execute_with_code_decorators print code_decorator.eval(code, locals=self.namespace), File "./julia.py", line 109, in eval raise RuntimeError(julia_error) RuntimeError: ERROR: syntax: incomplete: invalid string syntax

%julia
a = 5;
nonsense

Error in lines 1-1 Traceback (most recent call last): File "/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/.sagemathcloud/sage_server.py", line 862, in execute exec compile(block+'\n', '', 'single') in namespace, locals File "", line 1, in <module> File "/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/.sagemathcloud/sage_server.py", line 897, in execute_with_code_decorators print code_decorator.eval(code, locals=self.namespace), File "./julia.py", line 109, in eval raise RuntimeError(julia_error) RuntimeError: ERROR: nonsense not defined

%julia
a

5

a = julia('10'); b = julia('3.14')

a+b

13.14

a.sin()

-0.5440211108893698

julia('i')

11

julia('i')._sage_()

11

m = julia('i')
m._sage_()

11

str(m)

'11'

m._sage_repr()

'11'

m._sage_()

11

m._sage_??

   File: /usr/local/sage/sage-6.3.beta6/local/lib/python2.7/site-packages/sage/interfaces/interface.py
   Source:
       def _sage_(self):
        """
        Attempt to return a Sage version of this object.
        This is a generic routine that just tries to evaluate
        the repr(self).

        EXAMPLES::

            sage: gp(1/2)._sage_()
            1/2
            sage: _.parent()
            Rational Field

        AUTHORS:

        - William Stein

        - Felix Lawrence (2009-08-21)
        """
        string = self._sage_repr()
        try:
            return sage.misc.sage_eval.sage_eval(string)
        except Exception:
            raise NotImplementedError("Unable to parse output: %s" % string)