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STANDARD LIBRARY: Float
The
Float Library
contains eight functions. Six of these functions perform a variety of mathematic procedures and the other two functions return information about numeric boundaries set by the browser.
Of the six WMLScript standard libraries, only the implementation of the
Float Library
is considered optional. All eight functions require that the browser be able to support floating-point arithmetic operations. If the browser does not recognize floating-point, then these functions cannot perform their purpose and they will all return
invalid
.
The
Lang Library
contains several functions that perform related tasks regarding integer and floating-point numbers.
The library and function names are case senstive.
The eight functions are:
ceil
Rounds a floating-point number up to the next larger integer value.
Syntax:
Float.ceil
(value)
floor
Rounds a floating-point number down to the next smaller integer value.
Syntax:
Float.floor
(value)
int
Returns the integer portion of a floating-point number.
Syntax:
Float.int
(value)
maxFloat
Returns the largest floating-point number supported by the browser.
Syntax:
Float.maxFloat( )
minFloat
Returns the smallest nonzero floating-point number supported by the browser.
Syntax:
Float.minFloat( )
pow
Raises a floating-point or integer number up to a power.
Syntax:
Float.pow
(value, power)
round
Rounds a floating-point number up or down to the nearest integer.
Syntax:
Float.ceil
(value)
sqrt
Returns the square root of a floating-point or integer number.
Syntax:
Float.sqrt
(value)
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