I've been using sagemath throughout the semester with few problems, but I
just can't seem to figure out what's wrong with my syntax here.
x = var('x')
p(x) = x^3 – 3*x^2 + x - 1
Dp(x) = derivative(p(x), x)
plot(p(x), -1, 1)
I'm getting this error:
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("eCA9IHZhcigneCcpCgpwKHgpID0geF4zIOKAkyAzKnheMiArICh4IC0gMSkKRHAoeCkgPSBkZXJpdmF0aXZlKHAoeCksIHgpCgpwbG90KHAoeCksIC0xLCAxKQ=="),globals())+"\\n");
execfile(os.path.abspath("___code___.py"))
File "", line 1, in <module>
File "/tmp/tmpd2XXUV/___code___.py", line 5
__tmp__=var("x"); p = symbolic_expression(x**_sage_const_3 –
_sage_const_3 *x**_sage_const_2 + (x - _sage_const_1 )).function(x)
^
SyntaxError: invalid syntax
So appears that the function is in error...
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