December 2002
Intermediate to advanced
1088 pages
192h 4m
English
Content preview from ActionScript for Flash MX: The Definitive Guide, Second Edition
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Math.LN2 Property
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Alphabetical Language Reference
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607
Arguments
x A number.
Returns
The closest integer less than or equal to x.
Description
The floor( ) method converts a floating-point number to the first integer less than or equal
to
x. It leaves integers unchanged.
Example
Math.floor(1.99999); // Returns 1
Math.floor(5.5); // Returns 5
Math.floor(-5.5); // Returns -6
Math.floor(3); // Returns 3
function minutesToHHMM (minutes) {
var hours = Math.floor(minutes/60);
minutes -= hours * 60;
minutes = minutes < 10 ? "0" + minutes : minutes;
return hours + ":" + minutes;
}
See Also
Math.ceil( ), Math.round( )
Math.LN10 Property
natural logarithm of 10 (loge10), approximately 2.30259
Flash 5; can be used when exporting Flash 4 movies
Math.LN10
Description
The LN10 property represents the natural logarithm of 10 (the base-e logarithm of 10), a
constant equaling approximately 2.30259.
See Also
Math.exp( ), Math.LN2, Math.LOG10E
Math.LN2 Property
natural logarithm of 2 (loge2), approximately 0.69315
Flash 5; can be used when exporting Flash 4 movies
Math.LN2
Description
The LN2 property represents the natural logarithm of 2 (the base-e logarithm of 2), a
constant equaling approximately 0.69315
See Also
Math.exp( ), Math.LN10, Math.LOG10E
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