Looping around data: Array - the devise that let us handle with ease a great number of variables. Choose the shape to fit your engineering problem ( One dimensional, Two dimensional, Three …, Four …).

In this unit we deal with arrays.  When you deal with large number of data entries and you need to keep them in order and easily referable  you prefer to use arrays. Some times one dimensional ( list of test scores), many times two dimensional ( spreadsheets of various scores for various students, or the availability of seats in a theater, or the characteristics of a surface), and some times multi  dimensional ( the data needed to predict the weather over a region over a few days) .  In this unit we will also learn some elementary statistics, such as: how to calculate the mean, max, min, standard deviation of a set of data and how to find a straight line curve fit of some given relational data.