I

Format: I

Arguments: None

Returns: (num) The imaginary number I

Description: The constant I is the unit, pure imaginary number.

Complex numbers are entered as arithmetic expressions using the constant I. For example, to enter the complex number 3+4i, sometimes presented in the form (3,4), type the expression 3+4*I.

Examples: 3+5I = 3+5i

I*3+5 = 5+3i

3I+5 = 5+3i

(3+5*I)*2 = 6+10i

See Also: abs, arg, real, imag