Data instances can have a “quantity type”. In effect, visualization is simpler, and it enables the compiler to prevent quantity errors in your program.
Examples of Quantity types are:
When you add variables of a floating-point type that represents a quantity, it is important to state the quantity type.
The compiler deduces the quantity type for the result of a calculation or expression. In effect, when you assign a value to the float, the compiler analyzes the quantity types and shows when there is an error such as
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