ActionScript for Flash MX: The Definitive Guide, Second Edition

Math.LN2 Property

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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