While trying to use LaTeX with IPython, I used the following code:
from IPython.display import display, Math, Latex
display(Math(r'F(k) = \int_{-\infty}^{\infty} f(x) e^{2\pi i k} dx'))
from How to write LaTeX in IPython Notebook?.
But, I got the following error.
<IPython.core.display.Math at 0x269a030>
What does this error mean? When do I get it? How can I get rid of it?