This first article in a series on the role of vitamins and minerals explains the structure and function of vitamins A and C, which are needed for healthy skin and a healthy immune system. Vitamin A is ...

This is something that has bugged me somewhat, and I haven't found a very clear answer. So you have a function that is supposed to do something. You pass it input and get output. References would be ...

Say I can pass several commands to my program, and each command corresponds to a function.<BR><BR>How can I call this function without a lot of if-else? To add a ...