Want to know the tricks of replacing a variable in a file using the SED command? This article will give you an overview of replacing a variable value in a file using SED. Before replacing a variable ...

How to Assign a Value to a Variable in MySQL. MySQL user-defined variables are used to pass values from one statement to another. They are connection specific.

The standard way to assign to the real and imaginary components is what levine shows: pass the new values as arguments to .real () and .imag ().