Math Class

This class provides several functions to perform some calculations.

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List of public methods

Here is a list of available public methods for this class:

• Math::netto()
• Math::brutto()
• Math::percentage_value()
• Math::percentage()
• Math::basic_value()
• Math::square_metre()
• Math::cubic_metre()
• Math::cubic_in_litre()
• Math::mph()
• Math::kmh()
• Math::speed()
• Math::km_in_miles()
• Math::miles_in_km()
• Math::temperature()

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netto($brutto, $tax = null)

This function will return the net amount based on given brutto value and tax rate. If no percentage is given, the tax rate from the configuration will be used.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$brutto	mixed		Brutto amount.
	$tax	mixed	null	Optional value of given tax rate.

Example

		
Math::netto(19.95, 19);
		
	

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brutto($netto, $tax = null)

This function will return the brutto amount based on given netto value and tax rate. If no percentage is given, the tax rate from the configuration will be used.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$netto	mixed		Brutto amount.
	$tax	mixed	null	Optional value of given tax rate.

Example

		
Math::brutto(16.764, 19);
		
	

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percentage_value($basic_value, $percentage = null)

This function calculate the percentage value based on given basic value and percentage. If no percentage is given, the tax rate from the configuration will be used.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$basic_value	mixed		Brutto amount.
	$percentage	mixed	null	Optional value of given percentage.

Example

		
Math::percentage_value(100, 10);
		
	

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percentage($basic_value, $percentage_value)

This function calculate the percentage based on given basic value and percentage value.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$basic_value	mixed		Basic value.
	$percentage_value	mixed		Percentage value.

Example

		
Math::percentage(100, 10);
		
	

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basic_value($basic_value, $percentage_value)

This function calculate the basic value based on given percentage value and percentage. If no percentage is given, the tax rate from the configuration will be used.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$percentage_value	mixed		Percentage value.
	$percentage	mixed	null	Percentage.

Example

		
Math::basic_value(10, 10);
		
	

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square_metre($length, $width)

This function calculate the square metre value based on given values.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$length	mixed		Length value.
	$width	mixed		Width value.

Example

		
Math::square_metre(4, 3);
		
	

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cubic_metre($length, $width, $height)

This function calculate the cubic metre value based on given values.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$length	mixed		Length value.
	$width	mixed		Width value.
	$height	mixed		Height value.

Example

		
Math::cubic_metre(4, 3, 2.5);
		
	

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cubic_in_litre($cubic_metre)

This function calculate how many litre water is given cubic metre.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$cubic_metre	mixed		Cubic metre value.

Example

		
Math::cubic_in_litre(16);
		
	

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mph($miles, $time)

This function return miles per hour based on given values.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$miles	mixed		Miles value.
	$time	mixed		Time value.

Example

		
Math::mph(50, 1);
		
	

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kmh($km, $time)

This function return kilometers per hour based on given values.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$km	mixed		Kilometer value.
	$time	mixed		Time value.

Example

		
Math::kmh(60, 1);
		
	

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speed($distance, $time, $distance_unit = 'km', $speed_unit = 'kmh')

This function return kmh or mph based on given miles or kilometers.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$distance	mixed		Distance value.
	$time	mixed		Time value.
	$distance_unit	mixed	km	Distance unit: Possible values are "km" or "miles".
	$speed_unit	mixed	kmh	Speed unit: Possible values are "kmh" or "mph".

Example

		
Math::speed(129, 70, 'km', 'kmh');
		
	

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km_in_miles($km)

This function return given kilometers in miles.

Static	Yes
Parameters	Parameter	Type	Default	Description
	$km	mixed		Kilometer value.

Example

		
Math::km_in_miles(50);
		
	

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miles_in_km($miles)

Static	Yes
Parameters	Parameter	Type	Default	Description
	$miles	mixed		Miles value.

Example

		
Math::miles_in_km(31.068);
		
	

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temperature($value, $source_scale, $target_scale)

Static	Yes
Parameters	Parameter	Type	Default	Description
	$value	Numeric		Source temperature value.
	$source_scale	String		Source temperature scale. Valid scales: celsius, kelvin, rankine, fahrenheit, reaumur.
	$target_scale	String		Target temperature scale. Valid scales: celsius, kelvin, rankine, fahrenheit, reaumur.

Example

		
Math::temperature(17, 'celsius', 'fahrenheit');