To calculate $\int_{\theta_1}^{\theta_2}\int_{\phi_1}^{\phi_2}\int_{\rho_1}^{\rho_2} f(\rho,\phi,\theta)\rho^2\sin(\phi)\; d\rho\;d\phi\;d\theta$, enter the function only with the variables $\rho,\phi,\theta$. Note: To have $\rho,\phi,\theta$, type rho, phi and theta, respectively