A brief note on functions used in spreadsheets
The use of functions in spreadsheets make the otherwise complex procedures relatively simple. Some of the commonly used functions are,
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ISBLANK()
ISBLANK function could be used to check for null values or blank values.
Syntax:- ISBLANK(value)
Parameters: 'value' indicates what is to test. The function returns TRUE if value is blank and FALSE if value is not blank.
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PROPER()
PROPER function is to set the first letter of each word into uppercase and the rest of them into lower case.
Syntax: PROPER(text)
Parameters: The 'text' indicates the string whose first letter to convert into upper case and rest of the letters to lower case.
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ISNUMBER()
ISNUMBER function to check whether the value is numeric or not.
Syntax: ISNUMBER(value)
Parameters: 'value' indicates the value to test and if it is a number then the function returns TRUE and if not the function returns FALSE.
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LEN()
LEN function to return the length of the specified string.
Syntax: LEN(text)
Parameters: 'text' indicates the string whose length is the return.
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TODAY()
TODAY function to return the current date.
Syntax: TODAY()
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VALUE()
VALUE function converts a numeric text value to number.
Syntax: VALUE(text)
Parameters: 'text' indicates the return value as a number and if the value is not a number then the function returns #VALUE!.
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COLUMNS()
COLUMNS function returns the number of columns of a given reference.
Syntax: COLUMNS(Array)
Parameters: Array is the reference to a cell range whose total number of columns found.
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HYPERLINK()
HYPERLINK function to pass a URL as the parameter and on clicking a cell with HYPERLINK function the hyperlink opens.
Syntax: HYPERLINK("URL")
Parameters: URL specifies the link.
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DDE
Returns DDE-based link as the result.
Syntax: DDE("Server";"File";"Range";Mode)
Parameters: Server specifies the name of the server application.
File is the file to search for.
Range is the area to search for the data.
Mode is a parameter that controls the method by which the DDE server converts its data into numbers. This parameter is optional.