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Math has a set of properties (built-in constants) including
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E, LN10, LN2, PI, SQRT1_2, and SQRT2. For example:
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Math.PI is equal to 3.14159É
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Math methods include the usual ones:
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Math.abs(x) returns the absolute value of x
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Math.max(x1,x2) returns the maximum of x1 and x2
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Math.cos(x) returns the cosine of x (given in radians)
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Math.round(x) rounds x to the nearest integer
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Math.pow(2, 0.5) is equivalent to Math.sqrt(2)
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The Number object has properties defining system dependent constants such as:
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Number.MAX_VALUE is largest representable number on your machine
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Number.NaN represents "Not a Number" sometimes returned by parseInt and parseFloat
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