calc_formula Class Reference

Public Member Functions
	calc_formula ($formula, $params=false)
	set_params ($params)
	evaluate ()
	get_error ()
	localize ($formula)
	unlocalize ($formula)
Data Fields
	$_em
	$_nfx = false
	$_error = false

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Detailed Description

Definition at line 38 of file mathslib.php.

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Member Function Documentation

calc_formula	(	$	formula,
		$	params = false
	)

Constructor for spreadsheet formula with optional parameters

Parameters:

string	$formula	with leading =
array	$params	associative array of parameters used in formula. All parameter names must be lowercase!

Definition at line 51 of file mathslib.php.

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evaluate

(

)

Evaluate formula

Returns:

mixed number if ok, false if error

Definition at line 88 of file mathslib.php.

get_error

(

)

Get last error. TODO: localize the strings from contructor and EvalMath library

Returns:

mixed string with last error description or false if ok

Definition at line 108 of file mathslib.php.

localize

(

$

formula

)

Similar to format_float, formats the numbers and list separators according to locale specifics.

Parameters:

string

$formula

Returns:

string localised formula

Definition at line 118 of file mathslib.php.

set_params

(

$

params

)

Raplace parameters used in existing formula, parameter names must contain only lowercase [a-z] letters, no other characters are allowed!

Parameters:

array

$params

associative array of parameters used in formula

Definition at line 79 of file mathslib.php.

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unlocalize

(

$

formula

)

Similar to unformat_float, converts floats and lists to PHP standards.

Parameters:

string

$formula

localised formula

Returns:

string

Definition at line 130 of file mathslib.php.

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Field Documentation

$_em

Definition at line 41 of file mathslib.php.

$_error = false

Definition at line 43 of file mathslib.php.

$_nfx = false

Definition at line 42 of file mathslib.php.

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The documentation for this class was generated from the following file:

• C:/xampp/htdocs/moodle/lib/mathslib.php