Functions act as placeholders for the data they output. Basically, you can assign the output of a function to a variable, just like any normal data.We can take the return value of a function and assign it to a variable. Assume we have pre-defined a function sum which adds two numbers together. Assignment is typically the process of copying the result of an expression or return value from a function call into a specific memory location. FreeCodeCamp offers a curriculum and in this video we cover their lesson called Assignment with a Returned Value. Xarray offers extremely flexible indexing routines that combine the best features of NumPy and pandas for data selection. Do you need more help with coding? 'getRadius' asks the user to enter the radius of a circle and returns the given value.