Filemaker Pro 8.5 Educational Maintenance T3 TJ083LL/A Manual De Usuario

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152     FileMaker Functions Reference
Parameters
precision - any number or numeric expression
Data type returned
number
Description
Computes any math 
 contained within expression that support extended 
precision to precision decimal places (up to 400). All functions except the trigonometric 
functions support extended precision. This function doesn’t perform a truncation: 
 
numbers are left at the precision in which they were entered.
Examples
SetPrecision(5/9;30) returns 
0.555555555555555555555555555556
.
SetPrecision(If(field1>5;Exp(50);Average(5/9;1/7;5/7));25) returns 
either
5184705528587072464087.4533229334853848274691006
 if field1 > 
5
, or
0.4708994708994708994708995
 if field1 <= 
5
.
Sign
Format
Sign(number)
Parameter
 or 
Data type returned
number
Description
Returns one of three possible values: 
-1
 when number is negative, 
0
 when it’s zero, and 
1
 when it’s positive.
Examples
Sign(15.12) returns 
1
.
Sign(-175) returns 
-1
.
Sign(BalanceDue) returns 
0
, if BalanceDue is a number field containing 
0
.