All numbers can be expressed in 6 formats: decimal, **octal**, hexadecimal, binary, with fixed point, or scientific.

Each character, in particular those which cannot be typed directly from the keyboard, can also be typed in three digit **octal** notation.

The conversion types are: Conversion Meaning Notes d Signed integer decimal. i Signed integer decimal. o Unsigned **octal**.

To introduce arbitrary characters into a string using **octal** or hexadecimal notation.

Two isolates were identified as being the widely virulent race **octal** 1677, last detected in 1986.

**Octal** code 305.

**Octal** digits are ` 0 ' - ` 7 ' .

**Octal** escapes must always begin with a zero.

**Octal** integers are read in by grammar rules.

**Octal** notation.

**Octal** permission modes to form the flags argument.