Traceback from an tanh overflow warning

tanh_traceback.py

  File "D:\Anaconda\envs\py36\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "D:\Anaconda\envs\py36\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "D:\Anaconda\envs\py36\lib\site-packages\ipykernel_launcher.py", line 16, in <module>
    app.launch_new_instance()
  File "D:\Anaconda\envs\py36\lib\site-packages\traitlets\config\application.py", line 658, in launch_instance
    app.start()
  File "D:\Anaconda\envs\py36\lib\site-packages\ipykernel\kernelapp.py", line 486, in start
    self.io_loop.start()
  File "D:\Anaconda\envs\py36\lib\site-packages\tornado\platform\asyncio.py", line 127, in start
    self.asyncio_loop.run_forever()
  File "D:\Anaconda\envs\py36\lib\asyncio\base_events.py", line 422, in run_forever
    self._run_once()
  File "D:\Anaconda\envs\py36\lib\asyncio\base_events.py", line 1432, in _run_once
    handle._run()
  File "D:\Anaconda\envs\py36\lib\asyncio\events.py", line 145, in _run
    self._callback(*self._args)
  File "D:\Anaconda\envs\py36\lib\site-packages\tornado\platform\asyncio.py", line 117, in _handle_events
    handler_func(fileobj, events)
  File "D:\Anaconda\envs\py36\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
    return fn(*args, **kwargs)
  File "D:\Anaconda\envs\py36\lib\site-packages\zmq\eventloop\zmqstream.py", line 450, in _handle_events
    self._handle_recv()
  File "D:\Anaconda\envs\py36\lib\site-packages\zmq\eventloop\zmqstream.py", line 480, in _handle_recv
    self._run_callback(callback, msg)
  File "D:\Anaconda\envs\py36\lib\site-packages\zmq\eventloop\zmqstream.py", line 432, in _run_callback
    callback(*args, **kwargs)
  File "D:\Anaconda\envs\py36\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
    return fn(*args, **kwargs)
  File "D:\Anaconda\envs\py36\lib\site-packages\ipykernel\kernelbase.py", line 283, in dispatcher
    return self.dispatch_shell(stream, msg)
  File "D:\Anaconda\envs\py36\lib\site-packages\ipykernel\kernelbase.py", line 233, in dispatch_shell
    handler(stream, idents, msg)
  File "D:\Anaconda\envs\py36\lib\site-packages\ipykernel\kernelbase.py", line 399, in execute_request
    user_expressions, allow_stdin)
  File "D:\Anaconda\envs\py36\lib\site-packages\ipykernel\ipkernel.py", line 208, in do_execute
    res = shell.run_cell(code, store_history=store_history, silent=silent)
  File "D:\Anaconda\envs\py36\lib\site-packages\ipykernel\zmqshell.py", line 537, in run_cell
    return super(ZMQInteractiveShell, self).run_cell(*args, **kwargs)
  File "D:\Anaconda\envs\py36\lib\site-packages\IPython\core\interactiveshell.py", line 2662, in run_cell
    raw_cell, store_history, silent, shell_futures)
  File "D:\Anaconda\envs\py36\lib\site-packages\IPython\core\interactiveshell.py", line 2785, in _run_cell
    interactivity=interactivity, compiler=compiler, result=result)
  File "D:\Anaconda\envs\py36\lib\site-packages\IPython\core\interactiveshell.py", line 2903, in run_ast_nodes
    if self.run_code(code, result):
  File "D:\Anaconda\envs\py36\lib\site-packages\IPython\core\interactiveshell.py", line 2963, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-73-12629afd3b32>", line 17, in <module>
    data = numpyexp(E, THETA, dielectric_function, BEAM_ENERGY, thickness)
  File "D:\Anaconda\envs\py36\lib\site-packages\sympy\utilities\lambdify.py", line 444, in wrapper
    return funcarg(*newargs, **kwargsx)
  File "<string>", line 1, in <lambda>
  File "D:\Anaconda\envs\py36\lib\warnings.py", line 99, in _showwarnmsg
    msg.file, msg.line)
  File "<ipython-input-71-d602e1b4df11>", line 8, in warn_with_traceback
    traceback.print_stack(file=log)
D:\Anaconda\envs\py36\lib\site-packages\numpy\__init__.py:1: RuntimeWarning: overflow encountered in tanh