Trunc

This function truncates the decimal position of a floating point number:

• If the floating number belongs to the number range of 2147483647 to -2147483648, you need to type cast the return value to integer.
• If the floating number belongs to the number range of 2147483648 to 9223372036854775807 and -2147483649 to -9223372036854775808, you need to type cast the return value to big integer.

Trunc(value)

d = 1.9

i = Integer(Trunc(d))

;--> i = 1

d = 9999999999.001

i = BigInteger(Trunc(d))

;--> i = 9999999999