- Fix ISFORMULA() function to work with a cell reference to another worksheet
 - Added calculation engine support for the new functions that were added in MS Excel 2013 and MS Excel 2016
   - Text Functions
     - CONCAT()     Synonym for CONCATENATE()
     - NUMBERVALUE()  Converts text to a number, in a locale-independent way
     - UNICHAR()    Synonym for CHAR() in PHPSpreadsheet, which has always used UTF-8 internally
     - UNIORD()     Synonym for ORD() in PHPSpreadsheet, which has always used UTF-8 internally
     - TEXTJOIN()   Joins together two or more text strings, separated by a delimiter
   - Logical Functions
     - XOR()        Returns a logical Exclusive Or of all arguments
   - Date/Time Functions
     - ISOWEEKNUM()  Returns the ISO 8601 week number of the year for a given date
   - Lookup and Reference Functions
     - FORMULATEXT()  Returns a formula as a string
   - Engineering Functions
     - ERF.PRECISE()   Returns the error function integrated between 0 and a supplied limit
     - ERFC.PRECISE()  Synonym for ERFC
   - Math and Trig Functions
     - SEC()          Returns the secant of an angle
     - SECH()         Returns the hyperbolic secant of an angle
     - CSC()          Returns the cosecant of an angle
     - CSCH()         Returns the hyperbolic cosecant of an angle
     - COT()          Returns the cotangent of an angle
     - COTH()         Returns the hyperbolic cotangent of an angle
     - ACOT()         Returns the cotangent of an angle
     - ACOTH()        Returns the hyperbolic cotangent of an angle
  - Financial Functions
    - PDURATION()    Calculates the number of periods required for an investment to reach a specified value
    - RRI()          Calculates the interest rate required for an investment to grow to a specified future value
		
	
			
		
			
				
	
	
		
			25 lines
		
	
	
		
			423 B
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			423 B
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| 
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| return [
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|     [
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|         -52990.70632392715,
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|         [0.05 / 12, 60, 1000],
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|     ],
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|     [
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|         -26762.755452881098,
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|         [0.10 / 4, 16, 2000, 0, 1],
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|     ],
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|     [
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|         -5555.6058459337655,
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|         [0.075 / 12, 2 * 12, 250, null, 0],
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|     ],
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|     [
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|         -9252.072719337915,
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|         [0.06 / 52, 4 * 52, 50, null, 1],
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|     ],
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|     [
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|         -762.8840472202697,
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|         [0.0525 / 1, 10 * 1, 100, null, 0],
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|     ],
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| ];
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