Difference between revisions of "Documentation/How Tos/Calc: FACTDOUBLE function"
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− | + | {{Documentation/MasterTOC | |
+ | |bookid=1234''' | ||
+ | |booktitle=<div style="padding: 8px; font-size: 140%; font-weight: bold; background-color: #9BC0F5;">CALC FUNCTIONS</div> | ||
+ | |ShowParttitle=block|parttitle=[[Documentation/How_Tos/Calc:_Mathematical_functions|<div style="font-size: 140%;">Mathematical Functions]] | ||
+ | |ShowNextPage=block|NextPage=Documentation/How_Tos/Calc:_GCD_function | ||
+ | |ShowPrevPage=block|PrevPage=Documentation/How_Tos/Calc:_FACT_function | ||
+ | |ShowPrevPart=block|PrevPart=Documentation/How_Tos/Calc:_Logical_functions | ||
+ | |ShowNextPart=block|NextPart=Documentation/How_Tos/Calc:_Number_Conversion_functions | ||
+ | |toccontent= <div style="padding: 4px; font-size: 130%; font-weight: hidden; background-color:#DCE9FC;">FUNCTIONS</div> | ||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Trigonometric</div> | ||
+ | * [[Documentation/How_Tos/Calc:_COS_function|<div style="font-size: 120%;">Cos]] | ||
+ | * [[Documentation/How_Tos/Calc:_SIN_function|<div style="font-size: 120%;">Sin]] | ||
+ | * [[Documentation/How_Tos/Calc:_TAN_function|<div style="font-size: 120%;">Tan]] | ||
+ | * [[Documentation/How_Tos/Calc:_COT_function|<div style="font-size: 120%;">Cot]] | ||
+ | * [[Documentation/How_Tos/Calc:_ACOS_function|<div style="font-size: 120%;">Acos]] | ||
+ | * [[Documentation/How_Tos/Calc:_ACOT_function|<div style="font-size: 120%;">Acot]] | ||
+ | * [[Documentation/How_Tos/Calc:_ASIN_function|<div style="font-size: 120%;">Asin]] | ||
+ | * [[Documentation/How_Tos/Calc:_ATAN_function|<div style="font-size: 120%;">Atan]] | ||
+ | * [[Documentation/How_Tos/Calc:_ATAN2_function|<div style="font-size: 120%;">Atan2]] | ||
+ | * [[Documentation/How_Tos/Calc:_DEGREES_function|<div style="font-size: 120%;">Degrees]] | ||
+ | * [[Documentation/How_Tos/Calc:_RADIANS_function|<div style="font-size: 120%;">Radians]] | ||
+ | * [[Documentation/How_Tos/Calc:_PI_function|<div style="font-size: 120%;">Pi]] | ||
+ | |||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Hyperbolic</div> | ||
+ | * [[Documentation/How_Tos/Calc:_COSH_function|<div style="font-size: 120%;">Cosh]] | ||
+ | * [[Documentation/How_Tos/Calc:_SINH_function|<div style="font-size: 120%;">Sinh]] | ||
+ | * [[Documentation/How_Tos/Calc:_TANH_function|<div style="font-size: 120%;">Tanh]] | ||
+ | * [[Documentation/How_Tos/Calc:_COTH_function|<div style="font-size: 120%;">Coth]] | ||
+ | * [[Documentation/How_Tos/Calc:_ACOSH_function|<div style="font-size: 120%;">Acosh]] | ||
+ | * [[Documentation/How_Tos/Calc:_ACOTH_function|<div style="font-size: 120%;">Acoth]] | ||
+ | * [[Documentation/How_Tos/Calc:_ASINH_function|<div style="font-size: 120%;">Asinh]] | ||
+ | * [[Documentation/How_Tos/Calc:_ATANH_function|<div style="font-size: 120%;">Atanh]] | ||
+ | |||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Rounding and remainders</div> | ||
+ | * [[Documentation/How_Tos/Calc:_TRUNC_function|<div style="font-size: 120%;">Trunc]] | ||
+ | * [[Documentation/How_Tos/Calc:_ROUND_function|<div style="font-size: 120%;">Round]] | ||
+ | * [[Documentation/How_Tos/Calc:_ROUNDDOWN_function|<div style="font-size: 120%;">Rounddown]] | ||
+ | * [[Documentation/How_Tos/Calc:_ROUNDUP_function|<div style="font-size: 120%;">Roundup]] | ||
+ | * [[Documentation/How_Tos/Calc:_CEILING_function|<div style="font-size: 120%;">Ceiling]] | ||
+ | * [[Documentation/How_Tos/Calc:_FLOOR_function|<div style="font-size: 120%;">Floor]] | ||
+ | * [[Documentation/How_Tos/Calc:_EVEN_function|<div style="font-size: 120%;">Even]] | ||
+ | * [[Documentation/How_Tos/Calc:_ODD_function|<div style="font-size: 120%;">Odd]] | ||
+ | * [[Documentation/How_Tos/Calc:_MROUND_function|<div style="font-size: 120%;">Mround]] | ||
+ | * [[Documentation/How_Tos/Calc:_INT_function|<div style="font-size: 120%;">Int]] | ||
+ | * [[Documentation/How_Tos/Calc:_QUOTIENT_function|<div style="font-size: 120%;">Quotient]] | ||
+ | * [[Documentation/How_Tos/Calc:_MOD_function|<div style="font-size: 120%;">Mod]] | ||
+ | |||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Logarithm/Powers</div> | ||
+ | * [[Documentation/How_Tos/Calc:_EXP_function|<div style="font-size: 120%;">Exp]] | ||
+ | * [[Documentation/How_Tos/Calc:_POWER_function|<div style="font-size: 120%;">Power]] | ||
+ | * [[Documentation/How_Tos/Calc:_LOG_function|<div style="font-size: 120%;">Log]] | ||
+ | * [[Documentation/How_Tos/Calc:_LN_function|<div style="font-size: 120%;">Ln]] | ||
+ | * [[Documentation/How_Tos/Calc:_LOG10_function|<div style="font-size: 120%;">Log10]] | ||
+ | |||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Bessel functions</div> | ||
+ | * [[Documentation/How_Tos/Calc:_BESSELI_function|<div style="font-size: 120%;">Besseli]] | ||
+ | * [[Documentation/How_Tos/Calc:_BESSELJ_function|<div style="font-size: 120%;">Besselj]] | ||
+ | * [[Documentation/How_Tos/Calc:_BESSELK_function|<div style="font-size: 120%;">Besselk]] | ||
+ | * [[Documentation/How_Tos/Calc:_BESSELY_function|<div style="font-size: 120%;">Bessely]] | ||
+ | |||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Miscellaneous</div> | ||
+ | * [[Documentation/How_Tos/Calc:_ABS_function|<div style="font-size: 120%;">Abs]] | ||
+ | * [[Documentation/How_Tos/Calc:_COMBIN_function|<div style="font-size: 120%;">Combin]] | ||
+ | * [[Documentation/How_Tos/Calc:_COMBINA_function|<div style="font-size: 120%;">Combina]] | ||
+ | * [[Documentation/How_Tos/Calc:_CONVERT_function|<div style="font-size: 120%;">Convert]] | ||
+ | * [[Documentation/How_Tos/Calc:_CONVERT_ADD_function|<div style="font-size: 120%;">Convert Add]] | ||
+ | * [[Documentation/How_Tos/Calc:_COUNTBLANK_function|<div style="font-size: 120%;">Countblank]] | ||
+ | * [[Documentation/How_Tos/Calc:_COUNTIF_function|<div style="font-size: 120%;">Countif]] | ||
+ | * [[Documentation/How_Tos/Calc:_DELTA_function|<div style="font-size: 120%;">Delta]] | ||
+ | * [[Documentation/How_Tos/Calc:_ERF_function|<div style="font-size: 120%;">Erf]] | ||
+ | * [[Documentation/How_Tos/Calc:_ERFC_function|<div style="font-size: 120%;">Erfc]] | ||
+ | * [[Documentation/How_Tos/Calc:_FACT_function|<div style="font-size: 120%;">Fact]] | ||
+ | * [[Documentation/How_Tos/Calc:_FACTDOUBLE_function|<div style="font-size: 120%; border-style: double; border-color:#778899;">Factdouble]] | ||
+ | * [[Documentation/How_Tos/Calc:_GCD_function|<div style="font-size: 120%;">Gcd]] | ||
+ | * [[Documentation/How_Tos/Calc:_GCD_ADD_function|<div style="font-size: 120%;">Gcd Add]] | ||
+ | * [[Documentation/How_Tos/Calc:_GESTEP_function|<div style="font-size: 120%;">Gestep]] | ||
+ | * [[Documentation/How_Tos/Calc:_ISEVEN_function|<div style="font-size: 120%;">Iseven]] | ||
+ | * [[Documentation/How_Tos/Calc:_ISODD_function|<div style="font-size: 120%;">Isodd]] | ||
+ | * [[Documentation/How_Tos/Calc:_LCM_function|<div style="font-size: 120%;">Lcm]] | ||
+ | * [[Documentation/How_Tos/Calc:_LCM_ADD_function|<div style="font-size: 120%;">Lcm Add]] | ||
+ | * [[Documentation/How_Tos/Calc:_MULTINOMIAL_function|<div style="font-size: 120%;">Multinomial]] | ||
+ | * [[Documentation/How_Tos/Calc:_PRODUCT_function|<div style="font-size: 120%;">Product]] | ||
+ | * [[Documentation/How_Tos/Calc:_RAND_function|<div style="font-size: 120%;">Rand]] | ||
+ | * [[Documentation/How_Tos/Calc:_RANDBETWEEN_function|<div style="font-size: 120%;">Randbetween]] | ||
+ | * [[Documentation/How_Tos/Calc:_SERIESSUM_function|<div style="font-size: 120%;">Seriessum]] | ||
+ | * [[Documentation/How_Tos/Calc:_SIGN_function|<div style="font-size: 120%;">Sign]] | ||
+ | * [[Documentation/How_Tos/Calc:_SQRT_function|<div style="font-size: 120%;">Sqrt]] | ||
+ | * [[Documentation/How_Tos/Calc:_SQRTPI_function|<div style="font-size: 120%;">Sqrtpi]] | ||
+ | * [[Documentation/How_Tos/Calc:_SUBTOTAL_function|<div style="font-size: 120%;">Subtotal]] | ||
+ | * [[Documentation/How_Tos/Calc:_SUM_function|<div style="font-size: 120%;">Sum]] | ||
+ | * [[Documentation/How_Tos/Calc:_SUMIF_function|<div style="font-size: 120%;">Sumif]] | ||
+ | * [[Documentation/How_Tos/Calc:_SUMSQ_function|<div style="font-size: 120%;">Sumsq]] | ||
+ | }}__TOC__ | ||
== FACTDOUBLE == | == FACTDOUBLE == | ||
Returns the double factorial of a number. | Returns the double factorial of a number. |
Revision as of 09:01, 1 June 2013
CALC FUNCTIONS
Trigonometric
Hyperbolic
Rounding and remainders
Logarithm/Powers
Bessel functions
Miscellaneous
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FACTDOUBLE
Returns the double factorial of a number.
This function is only available if the Analysis AddIn is installed.
Syntax:
FACTDOUBLE(number)
- returns number!!, the double factorial of number, where number is an integer greater than or equal to zero.
- For even numbers FACTDOUBLE(number) returns:
- 2*4*6*8* ... *number
- For odd numbers FACTDOUBLE(number) returns:
- 1*3*5*7* ... *number
- FACTDOUBLE(0) returns 1 by definition.
Example:
FACTDOUBLE(5)
- returns 15.
FACTDOUBLE(6)
- returns 48.
FACTDOUBLE(0)
- returns 1.
Issues:
- This function currently appears in the AddIn category of the Function Wizard.