Midterm 1 covers Chapters 1-7 of the book.  Below is a list of some of the important topics in those chapters.  Caveat: this is not necessarily an exhaustive list of possible topics on
the exam.

Introduction
- processor, memory, disk
- binary
Variables
- assignment
- identifiers
- numeric variables, characters, strings, logical variables
- numeric operators, logical operators, relational operators
- floating point numbers
- floating point rounding and comparing floats
Scripts and Functions
- user-defined functions
- builtin math functions
- input
- fprintf
1D Arrays
- row arrays, column arrays
- constructing arrays
  - double colon operator
  - linspace and logspace
- manipulating arrays
- array indexing
  - integer indexing and logical indexing
  - end
- relational operators on row arrays
- strings as arrays
- functions and arrays
1D Array Operators
- elementwise arithmetic operators
  - +, -, .*, ./
  - between an array and an array or an array and a scalar
- logical operators
  - &, |, ~, xor
  - truth table
- combining logical and relational operators
File I/O
- save and load
Plotting
- 2D plotting
  - colors and line styles
  - plotting in same window
  - subplots
Strings
- casting with char and uint8
- string comparisons
  - ==
  - strcmp
- string manipulations
  - strrep
- strfind, strtrim, isspace, ischar, isletter
- num2str, int2str, sprintf
- str2double, str2num, sscanf
- arrays of strings with char()
2D Arrays
- construction, manipulation, indexing
- flattening and reshaping
- logical and relational operators