We often want to check if a value is above or below a certain amount. We check the relation of one value to another.

These kinds of conditions are known as relational operators. Languages typically use symbols from mathematics:

  • For less than: <
  • For less than or equal to: <=
  • For greater than: >
  • For greater than or equal to: >=

For example, if you go to the doctor and the nurse takes your temperature:

Take patient's temperature If (body temperature is > 99) { Alert doctor to fever } Send in doctor

We can use relational operators to check whether values are higher or lower than each other. With Codey, we will compare their horizontal and vertical positions.


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