To represent a negative number as a literal, prepend a minus sign (-) to the literal, as in -45. If you need to use a literal integer with octal numbering, prepend a 0 to the number. For example, the octal number 777 would be the literal 0777. Hexadecimal integers are used as literals by prepending the number with 0x, as in 0x12 or 0xFF. NOTE. Octal and hexadecimal numbering systems are convenient for many advanced programming uses, but unlikely to be needed by beginners.
To skip a period: 1  When taking monophasic birth control pills:  28-day oral contraceptive (OC) pack users: When you reach the end of the active hormonal pills in a pack (the first 21 or 24 pills), begin the next set of active pills, skipping the inactive (placebo pills) from the previous package.
Birth control pills, otherwise known as oral contraceptives, prevent pregnancy by changing the course of your menstrual cycle: The hormones in the pill stop normal ovulation. In essence, coming off the pill puts your body back on its natural cycle. If you have been using the birth control pill to lessen the symptoms of premenstrual syndrome (PMS) or to manage irregular periods, you may be wondering exactly what will happen when you stop taking it. How Birth Control Pills and Devices Work.