Showing posts with label math. Show all posts
Showing posts with label math. Show all posts
JavaScript: Power Function
pow function:
Returns base to the exponent power, that is, baseexponent .
Calculate x raised to y (xy)
Syntax:
pow(x,y)
x is the base number and y is the exponent to which to raise base.
Description:
Because pow is a static method of Math, you always use it as Math.pow(), rather than as a method of a Math object you created.
Example:
<html>
<head>
<title>Power Function</title>
<script language="javascript">
document.write("calculate 5 <sup> 2 </sup> = " + Math.pow(5,2) + "<br>");
document.write("calcuclate 3 <sup> 5 </sup> = " + Math.pow(3,5) + "<br>");
</script>
</head>
</html>
OUTPUT:
calculate 52 = 25
calcuclate 35 = 243
JavaScript: Min Function
Math.min() Function:
Find the minimum number in the array list.
Syntax:
min(number1,number2,.......numbern)
Description:
Because min is a static method of Math, you always use it as Math.min(), rather than as a method of a Math object you created.
Example
<html>
<head>
<title>MIN Function</title>
<script language="javascript">
document.write("The minimum number is " + Math.min(5,8) + " from(5,8)
");
document.write("The minimum number is " + Math.min(-2,-9) + " from(-2,-9)
");
document.write("The minimum number is " + Math.min(7.25,7.30) + " from(7.25,7.30)");
</script>
</head>
</html>
OUTPUT:
The minimum number is 5 from(5,8)
The minimum number is -9 from(-2,-9)
The minimum number is 7.25 from(7.25,7.30)
JavaScript: MAX Function
Math.max() Function:
Find the maximum number in the arraylist.
Syntax:
max(number,numner.........,number)
Description:
Because max is a static method of Math, you always use it as Math.max(), rather than as a method of a Math object you created.
Example:
<html>
<head>
<title>Math.max() Function</title>
<script language="javascript">
document.write("The maximum number is " + Math.max(5,8,10) + " from(5,8,10)
");
document.write("The maximum number is " + Math.max(-4,-7) + " from(-4,-7)
");
</script>
</head>
</html>
OUT PUT
The maximum number is 10 from(5,8,10)
The maximum number is -4 from(-4,-7)
JavaScript: isNaN Function
isNaN Function :-
Evaluates an argument to determine if it is not a number.
Syntax :-
isNaN(value)
value = The value you want to evaluate.
Description :-
isNaN is a top-level function and is not associated with any object.
On platforms that support NaN, the parseFloat and parseInt functions return NaN when they evaluate a value that is not a number. isNaN returns true if passed NaN, and false otherwise.
Example:
<html>
<head>
<title>isNaN Fnction</title>
<script language="javascript">
function check()
{
var phone=f1.phone.value;
if(isNaN(phone))
alert("Characters are not allowed in the Phone Number");
else
alert("Your Phone Number is Accepted");
}
</script>
</head>
<body>
<form name="f1">
Phone: <input type="text" name="phone" size="20">
<input type="button" value="check" onclick="check()">
</form>
</body>
</html>
JavaScript: Squareroot Function
sqrt Function :-
Returns the square root of a number.
Suntax :-
sqrt(number)
Description :-
If the value of
number is negative,sqrt returns NaN. Because sqrt is a static method of Math,you always use it as Math.sqrt(), rather than as a method of a Math object you created.Example:
<html>
<head>
<title>Calculate Squareroot</title>
<script language="javascript">
function calcsqrt()
{
var value=f1.sqrt.value;
alert("The Squareroot of " + value + " is " + Math.sqrt(value));
}
</script>
</head>
<body>
<form name="f1">
<input type="text" name="sqrt" value="Enter Number" size="20">
<input type="button" value="Calculate" onclick="calcsqrt()">
</form>
</body>
</html>
JavaScript: PI Function
PI:
The ratio of the circumference of a circle to its diameter, approximately 3.14159.
Description:
Because PI is a static property of Math, you always use it as Math.PI, rather than as a property of a Math object you created.
Example
<html>
<head>
<title>Calculate PI Value</title>
<script language="javascript">
document.write(Math.PI);
</script>
</head>
</html>
OUTPUT
3.141592653589793
Javascript: FLOOR Function
floor function Returns the largest integer less than or equal to a number.
Syntax:
floor(a number)
Description:
Because floor is a static method of Math, you always use it as Math.floor(), rather than as a method of a Math object you created.
Example in HEAD Section
| <html> <head> <title>Math.floor function</title> <script languag="javascript"> document.write("Pass value is -45.65 and return value is = " + Math.floor(45.65) + "<br>"); document.write("Pass value is -45.65 and return value is = " + Math.floor(-45.65)); </script> </head> </html> |
Example in BODY Section
| <html> <head> <title>Math.floor function</title> </head> <body> <script languag="javascript"> document.write("Pass value is -45.65 and return value is = " + Math.floor(45.65) + "<br>"); document.write("Pass value is -45.65 and return value is = " + Math.floor(-45.65)); </script> </body> </html> |
OUTPUT
Pass value is -45.65 and return value is = 45
Pass value is -45.65 and return value is = -46
Javascript: CEIL Function
ceil Function returns the smallest integer greater than or equal to a number.
Syntax:
ceil(a numebr)
Description:
Because ceil is a static method of math, you always use it as Math.ceil(), rather than as a method of a Math object you created.
Example in HEAD Section
| <html> <head> <title>Math.ceil function</title> <script language="javascript"> document.write("Pass value is -45.65 and return value is = " + Math.ceil(45.65) + "<br>"); document.write("Pass value is -45.65 and return value is = " + Math.ceil(-45.65)); </script> </head> </html> |
Example in BODY Section
| <html> <head> <title>Math.ceil function</title> </head> <body> <script language="javascript"> document.write("Pass value is -45.65 and return value is = " + Math.ceil(45.65) + "<br>"); document.write("Pass value is -45.65 and return value is = " + Math.ceil(-45.65)); </script> </body> </html> |
OUTPUT
Pass value is -45.65 and return value is = 46
Pass value is -45.65 and return value is = -45
Javascript: BIG Function
big Funtion
Causes a string to be displayed in a big font as if it were in a BIG tag.
Syntax:
big()
Description:
Use the big method with the write or write methods to format and display a string in a document. In server-side JavaScript, use the write function to display the string.
Example:
<html>
<head>
<title>Big function</title>
<script languge="javscript">
function makebig()
{
var name=f1.t1.value.big();
document.write(name);
}
</script>
</head>
<body>
<form name="f1">
<input type="text" name="t1" value="click" size="20">
<input type="button" onclick="makebig()" value="click">
</form>
</body>
</html>
Subscribe to:
Posts (Atom)