Logarithms
Table of Contents
| withBase() | LOG_BASE. | float|string |
|---|---|---|
| base10() | LOG10. | float|string |
| natural() | LN. | float|string |
Methods
withBase()
LOG_BASE.
public
static withBase(
$number :
mixed
[, $base :
mixed
= 10 ]
)
: float|string
Returns the logarithm of a number to a specified base. The default base is 10.
Excel Function: LOG(number[,base])
Parameters
- $number : mixed
The positive real number for which you want the logarithm
- $base : mixed = 10
The base of the logarithm. If base is omitted, it is assumed to be 10.
Return values
float|string —The result, or a string containing an error
base10()
LOG10.
public
static base10(
$number :
mixed
)
: float|string
Returns the result of builtin function log after validating args.
Parameters
- $number : mixed
Should be numeric
Return values
float|string —Rounded number
natural()
LN.
public
static natural(
$number :
mixed
)
: float|string
Returns the result of builtin function log after validating args.
Parameters
- $number : mixed
Should be numeric
Return values
float|string —Rounded number