ó ¡¼™\c@s]ddlmZmZmZmZmZmZddlmZd„Z d„Z d„Z dS(iÿÿÿÿ(tFunctiontsympifytsintcostlimitttanh(txcCs~dtfd„ƒY}|tƒjtddƒttƒjtddƒksRt‚t|tƒttdƒdkszt‚dS(sCreate our new "sin" function.t my_functioncBs#eZdd„Zed„ƒZRS(icSst|jdƒS(Ni(Rtargs(tselftargindex((sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pytfdiff scSs&t|ƒ}|dkr"tdƒSdS(Ni(R(tclstarg((sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pytevals  (t__name__t __module__R t classmethodR(((sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyR s ii iN(RRtseriesRtAssertionErrorR(R((sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyttest_function_series1s <cCsVdtfd„ƒY}|tƒjtddƒttƒjtddƒksRt‚dS(sCreate our new "cos" function.t my_function2cBs#eZdd„Zed„ƒZRS(icSst|jdƒ S(Ni(RR(R R ((sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyR scSs&t|ƒ}|dkr"tdƒSdS(Nii(R(R R ((sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyR"s  (RRR RR(((sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyRs ii N(RRRRR(R((sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyttest_function_series2s cstdtf‡fd†ƒY‰ttƒ}ˆtƒ}ttƒjtddƒˆtƒjtddƒkspt‚dS(s_ Test our easy "tanh" function. This test tests two things: * that the Function interface works as expected and it's easy to use * that the general algorithm for the series expansion works even when the derivative is defined recursively in terms of the original function, since tanh(x).diff(x) == 1-tanh(x)**2 tmytanhcs)eZd‡fd†Zed„ƒZRS(icsdˆ|jdƒdS(Niii(R(R R (R(sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyR 9scSs&t|ƒ}|dkr"tdƒSdS(Ni(R(R R ((sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyR<s  (RRR RR((R(sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyR7siiN(RRRRR(tetf((RsNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyttest_function_series3,s   N( tsympyRRRRRRt sympy.abcRRRR(((sNlib/python2.7/site-packages/sympy/functions/elementary/tests/test_interface.pyts.