Small Basic Arithmetic and Variables

Arithmetic Operators

• Small Basic uses the following arithmetic operators:
  • + (addition)
  • - (subtraction)
  • * (multiplication)
  • / (division)
  • \ (integer divison)
  • ^ (power)
  • Math.Remainder() (modulo)

Variable Naming

• The rules for naming variables in Small Basic are:
  • Must start with a letter
  • Can contain letters, numbers, and the underscore character (_)
  • Cannot be a reserved word

Variables

• Small Basic has two types of variables:
  • Local: Variables declared inside a function. Their scope is limited to that function.
  • Global: Variables declared outside a function. Their scope is global, meaning they can be accessed by any function in the program.

Comments in Small Basic

• Comments are used to provide explanations and documentation within a program.
• They are ignored by the interpreter.
• Use single quotes ' at the start of a comment.

Write() vs WriteLine() Methods

• WriteLine() prints the text and then moves the cursor to the next line.
• Write() prints the text on the same line.

Conditional Statements - If-Then, If-Then-Else, If-Then-ElseIf

• If- Then: Executes a block of code only if a condition is true.
• If-Then-Else: Executes one block of code if a condition is true and another block if the condition is false.
• If-Then-ElseIf: Allows us to evaluate multiple conditions in sequence.

Example Coding

• Operator Usage:
  • >= (greater than or equal to)
  • * (multiplication)
  • + (addition)
  • > (greater than)
  • AND (logical AND)
  • = (assignment operator)

Coding for Lunchbox Data

• To collect data on students bringing lunchboxes, you can use a For loop with an If statement to count students under 14 who bring lunchboxes.