The IMLN
function returns the logarithm of a complex number, base e (Euler's number).
Parts of a IMLN formula
The IMLN
formula is formatted as =IIMLN(number).
Part | Description | Notes |
number | The input value of the logarithm function. |
|
Sample formulas
IMLN("3+4i")
IMLN(A2)
IMLN("4+2j")
Notes
IMLN
is equivalent toLN
for all non-complex values that are greater than zero.IMLN
is equivalent toLOG
given base ofe
, orEXP(1)
, for all non-complex values that are greater than zero.- The natural logarithm of a complex number is defined as follows:
- ln(x+yi) = √(x2+y2) + i tan-1(y/x)
Examples
A | B | |
---|---|---|
1 | Formula | Result |
2 | =IMLN("1+i") |
0.346573590279973+0.785398163397448i |
3 | =IMLN("4+2j") |
1.497866136777+0.463647609000806i |
4 | =IMLN("-4.6") |
1.52605630349505+3.14159265358979i |
Related functions
LN
: Returns the logarithm of a number, base e (Euler's number).
COMPLEX
: The COMPLEX function creates a complex number, given real and imaginary coefficients.
IMAGINARY
: Returns the imaginary coefficient of a complex number.
IMREAL
: Returns the real coefficient of a complex number.
LOG10
: Returns the logarithm of a number, base 10.
LOG
: Returns the logarithm of a number given a base.
EXP
: Returns Euler's number, e (~2.718) raised to a power.