What is single precision variable?

If there is need to store the numeric values as decimal values, real variables may be use.
Any numeric variable by default is assumed as real variable.
The variable declared by using an exclamation point ( ! ) as the last character of the variable name is single precision variable.
When a variable is declared as single precision and that exceeds seven digits, it is rounded to its closest value. Although there will be displayed seventh digit, its accuracy is not dependable.
For example:

if variable declared as A! = 1.12345678, then the value stored will be 1.123457.

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