Filemaker Pro 8.5 Educational Maintenance T3 TJ083LL/A User Manual

Chapter 9

  

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  Number functions     147

number

Returns the factorial of number stopping at 1, or stopping at the optional 
numberOfFactors. Useful in statistics and combinatorics.
Where n = number and i = numberOfFactors:

Factorial(3) returns 

, which = 3 * 2 * 1.

Factorial(10;3) returns 

, which = 10 * 9 * 8.

Floor(number)

number - any numeric 

 or 

number

Returns number rounded down to the next lower integer.

Floor(1.25) returns 

.

Floor(-1.25) returns 

.

Int(number)

Factorial n

( )

n n 1

–

(

) n 2

–

(

)… 1

( )

=

Factorial n;i

( )

n n 1

–

(

) n 2

–

(

)… n i

–

1

+

(

)

=