techSetPrecision

techSetPrecision(
x_digits
) 
=> t / nil

Sets the precision, or number of digits following the decimal point, to be used in floating-point calculations.

This function treats a real number as a float (double) number and performs the following checks.

If absolute value of number less than equal to 1/10^n (precision), then the same number is returned.
If absolute value of number greater than precision, then it is rounded off to the precision digit.

x_digits

Number of digits following the decimal point in floating-point numbers.

Valid values: 1 through 8

If a value greater than 8 is assigned, x_digit is set to 8. It is also ensured that no overflow occurs when the value gets close to 8.

`t`	The specified precision was set.
`nil`	The precision was not set because the specified precision value was invalid.

techSetPrecision(6)

Sets the precision for floating-point numbers to 6.