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Functions                                                             =SUM(A1:A5)
                 Functions  are  in-built  formula  in  LibreOffice  Calc
                 that can be used to perform arithmetical and non-
                 arithmetical tasks. A function contains  Name and
                 Argument.                                              Name                                Argument
                 For Example, A formula, say as A6=A1+A2+A3+A4+A5 can be written using the SUM function along with the
                 cell range A6 as: =SUM(A1:A5)
                 Name is the name of the function that signifies the nature of operation. Argument specifies the values or the
                 range of cells on which the specific operation is being applied and is always enclosed within the opening and
                 closing parenthesis (i.e. Name refers to the operator and Argument refers to the operand).
                 Mathematical Functions
                 These  functions  perform  mathematical  calculations  on  the  specified  arguments.  Some  mathematical
                 functions are:

                        Function                                           Description
                  SUM(X,Y,..)           It  produces  the  sum  of  the  numbers  for  a  range  of  cells.  E.g.,  =SUM(C1  ...C4),
                                        =SUM(C1:C4) (will produce the addition of cells from C1 to C4)

                  ABS(X)                It produces the positive (absolute) value of a given integer.
                                        E.g., =ABS(-8)=8, =ABS(4)=4, =ABS(-3.7)=3.7
                  INT(X)                It produces the integer value of a given integer.
                                        E.g., =INT(12.54)=12, =INT(-8.72)=-9

                  SQRT(X)               It produces the square root of a positive integer.
                                        E.g., =SQRT(9) = 3, =SQRT(2) = 1.414213562
                  ROUND(X,Y)            It produces the value of X that is rounded to the number of digits specified by Y.

                                        E.g., =ROUND(12.234,2)= 12.23, =ROUND(32.67,0)=33
                  MOD(X,Y)              It produces the remainder of X divided by Y.
                                        E.g., =MOD(11,2) = 1, =MOD(90,2) = 0
                  POWER(X,Y)            It produces the value of X raised to the power of Y.
                                        E.g., =POWER(5,2)=25, =POWER(-5,0.5)=#NUM!
                  PRODUCT(X,Y)          It multiplies all the given arguments.

                                        E.g., =PRODUCT(5,2,3) = 30, =PRODUCT(-5,6,0) = 0






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