Update plot_state_hinton() formatting (#3093)
Update plot_state_hinton() formatting (#3093)

Add axes to the image part. It looks like the image axes already exist for non-empty graphs. The change that I made here is to remove if np.any(dataimag != 0): if the desired behavior is to see the axes on graphs that don't contain any elements.

Replace rho with the latex rho

Use standard format for real and imag parts of rho

Fixes #2321
QISKit/qiskit-sdk-py,QISKit/qiskit-sdk-py,QISKit/qiskit-sdk-py