1.  Math Constants   
2.  Math Class Arithmetic   
3.  Math Class Trigonometry   
4.  Math class includes the constant Math.PI for the number, ratio of a circle's circumference to its diameter.   
5.  Finding Absolute Values   
6.  Rounding and Truncating Numbers: round(), ceiling(), and floor()   
7.  The ceil() method returns the nexthighest integer value of the number passed it as an argument.   
8.  The floor()returns the nextlowest integer.   
9.  Use round(), ceiling(), and floor() to round or truncate to decimal place values.   

10.  Generating Random Numbers: The random() returns a floatingpoint value between 0 and 0.999999, inclusive.   
11.  Generate a random number within a range that does not start with 0   
12.  Random integer values   
13.  If you are working with one sixsided die, you want to generate a random number between 1 and 6 each time   
14.  Finding the Greater or Lesser of Two Numbers   
15.  The calculation for finding compound interest: newValue = originalValue * (1 + rate/cp)^(cp*t)   
16.  package{   
17.  The exp() method requires one parameter: a number. It then raises e (Math.E) to the power of that number.   
18.  atan2(), takes two parameters (an X and a Ycoordinate), and returns the angle formed by the right triangle measured in radians: Math.atan2(x, y)   
19.  Use Math.round( ) to round a number to the nearest integer   
20.  Use Math.floor( ) to round a number down   
21.  Use Math.ceil( ) to round a number up.   
22.  To round a number to the nearest decimal place:   
23.  Use the identical math to round a number to the nearest multiple of an integer.   
24.  All trig functions operate on radians, an angular unit in which radians measure a full revolution.   
25.  Generate random number in a range   