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Math Object
The Math object works by performing normal arithmetic tasks.
The Math object provides a variety of arithmetic value types and functions. You do not need to define it before using this object.
Arithmetic valueJavaScript provides 8 arithmetic values that can be accessed by the Math object:
This is the method of using these values in Javascript: (corresponds to the above arithmetic value one by one)
Arithmetic method
In addition to the arithmetic values that can be accessed by the Math object, there are several functions (methods) that can be used.
Example of a function (method):
The following example rounds a number by using the round method of the Math object.
document.write (Math.round(4.7))
The above code output is:
5
The following example uses the random () method of the Math object to return an arbitrary number between 0 and 1:
document.write (Math.random())
The above code output is:
0.9370844220218102
The following example uses the floor () method and random () of the Math object to return a random number between 0 and 10:
document.write (Math.floor(Math.random()*11)
The above code output is:
3
Compare size, return a large value
<body>
<script type= "Text/javascript" >
document.write (Math.max (5,7) + "<br/>")
document.write (Math.max ( -3,5) + "<br/>")
document.write (Math.max ( -3,-5) + "<br/>")
document.write (Math.max (7.25,7.30))
</script>
</body>
Compare size, return a small value
<body>
<script type= "Text/javascript" >
document.write (Math.min (5,7) + "<br/>")
document.write (Math.min ( -3,5) + "<br/>")
document.write (Math.min ( -3,-5) + "<br/>")
document.write (Math.min (7.25,7.30))
</script>
</body>
JavaScript arithmetic objects
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