In flash, the math class is a very common class. Through mathematical computation, we can achieve a lot of wonderful results. Here we will start from the most basic learning and add a math knowledge.
Let's take a look at the math class provided in
Math is a mathematical class in Java, which records many of them.ProgramMathematical aspects to be used, such as two constants:
The circumference rate of the math. Pi record
Math. E records the constant of E.
Math has some similar constants,
The circumference rate of the Math. PI record
Math. E records the constant of e.
Math has some similar constants, which are commonly used in Engineering Mathematics.
Math. abs evaluate absolute value
Math. sin sine function Math. asin arcsin
This is certainly feasible, but too complex, the following author on how to directly in the Smarty template to generate random numbers this little trick to share with you.
Now suppose you need to generate a random number between 125-324 in the
1. Math. min () and Math. max () return the minimum and maximum values of the parameters respectively. Example:Alert (Math. min (1, 2, 3) // output "1"Alert (Math. max (1, 2, 3) // output "3"2. Math. abs () returns the absolute value of the
Some Math object methods can implement some mathematical calculations in our textbooks. The following are commonly used methods:
1. Math. min () and Math. max () return the minimum and maximum values of the parameters respectively.
Example:
Alert
1. mathematical operations defined by math objects
Javascript supports some complex arithmetic operations. These complex operations are implemented by using functions and constants defined as attributes of the math object:
Math. Pow (9007199254740992
// Mathematical function -- abs returns the absolute value of a number var a;/* a = Math. abs (-12); alert (a); // 12 // mathematical function -- arccosine of acos return number a = Math. acos (numeric expression); // mathematical function -- asin
Usage of the math function in the PHP template engine smarty to generate a random number smarty
{Math equation = rand (125,324 )}
How is it? Isn't it easy? in fact, math function in the smarty template is mainly used
{Math Equation=rand (125,324)}
Copy CodeWhat do you think? is not very simple, in fact, the main use of the Smarty template in the math function, the following smarty math function and usage to do a brief explanation. Math allows the
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