# TypeError: 'sage.rings.integer.Integer' object is not callable [closed]

Hi there.

I am new to SAGE and I am getting this error when doing an integration. I am not sure if I am doing correctly the power 2 of the sech function.

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "_sage_input_6.py", line 10, in <module>
exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\n" + _support_.preparse_worksheet_cell(base64.b64decode("dmFyKCdjLEgsayxkLHgsdCcpCmY9KGMqSCooc2VjaF4yKGsvZCooeC1jKnQpKSkpLyhkK0gqKHNlY2heMihrL2QqKHgtYyp0KSkpKQpmLmludGVncmFsKHQp"),globals())+"\n"); execfile(os.path.abspath("___code___.py"))
File "", line 1, in <module>

File "/tmp/tmpC99A8h/___code___.py", line 4, in <module>
f=(c*H*(sech**_sage_const_2 (k/d (x-ct))))/(d+H(sech**

*_sage_const_2 (k/d*(x-c*t)))) TypeError: 'sage.rings.integer.Integer' object is not callable

Any corrections and/or suggestions will be welcome. Thanks in advance.