num1 | String Number (floating point number represented as a String). |
num2 | String Number (floating point number represented as a String) to subtract from num1. |
precision | String Optional. Number of decimal places to which the difference will be rounded. The default value is null. The precision parameter, if specified, will override the behavior set by the watt.server.math.floatOperation.mode property. For information about the watt.server.math.floatOperation.mode property, see the webMethods Integration Server Administrator’s Guide. |
value | String Difference of num1 - num2. If a difference cannot be produced, value contains one of the following: | |
Value | Description | |
Infinity | The computation produces a positive value that overflows the representable range of a float type. | |
-Infinity | The computation produces a negative value that overflows the representable range of a float type. | |
0.0 | The computation produces a value that underflows the representable range of a float type (for example, subtracting a number from infinity). | |
NaN | The computation produces a value that cannot be represented as a number (for example, the result of an illegal operation such as multiplying zero by zero or any operation that uses NaN as input, such as 10.0 - NaN = NaN). |