JavaScript Math tanh() Method
Below is the example of the Math tanh() Method.
- Example:
<script>
// Printing hyperbolic tangent of some numbers
// taken as parameter of Math.tanh() function.
document.write(Math.tanh(0)+
"<br>"
);
document.write(Math.tanh(1)+
"<br>"
);
document.write(Math.tanh(5)+
"<br>"
);
document.write(Math.tanh(22)+
"<br>"
);
document.write(Math.tanh(-2)+
"<br>"
);
document.write(Math.tanh(4)+
"<br>"
);
</script>
- Output:
0 0.7615941559557649 0.9999092042625951 1 -0.9640275800758169 0.999329299739067
The Math.tanh() method is used to calculate the value of hyperbolic tangent of a number.
Syntax:
Math.tanh(x)
Parameter: This method accepts a single parameter as mentioned above and described below:
- x: which is a number for which the value of hyperbolic tangent is going to be calculated.
Return value: It returns the calculated value of the hyperbolic tangent of the number.< Below example illustrate the Math tanh() method in JavaScript:
- Example 1: Here formula for calculating hyperbolic tangent of any number e is a mathematical constant having an approximate value equal to 2.718.
Input :Math.tanh(0) Output : 0
- Example 2: In the same way hyperbolic tangent of any number can be calculated just after replacing p with the desired number. Here the same as the above calculation, when we put 18 instead of x then the value becomes as output shown above.
Input : Math.tanh(18) Output : 0.9999999999999996
More codes for the above method are as follows:
Program 1: It is an error case because complex number can not be taken as the parameter of the function only integer value can be taken as the parameter.
<script> // complex number can not be calculated // as the hyperbolic tangent. document.write(Math.tanh(1 + 2i)); </script> |
Output:
Error: Invalid or unexpected token
Program 2: Other than integer nothing is accepted as the parameter of the function that is why here string as the parameter gives NaN i.e, not a number.
<script> // Any string value as the parameter of the function // gives NaN i.e, not a number // because only number can be used as the parameters. document.write(Math.tanh( "geeksforgeeks" )+ "<br>" ); document.write(Math.tanh( "gfg" )); </script> |
Output:
NaN NaN
Program 3: Its practical application is that whenever we need to find the value of the hyperbolic tangent of a number that time we take the help of Math.tanh() function in JavaScript.
<script> // Printing hyperbolic tangent of some // numbers from 0 to 9 // taken as parameter of Math.tanh() function. for (i = 0; i < 10; i++) { document.write(Math.tanh(i) + "<br>" ); } </script> |
Output:
0 0.7615941559557649 0.9640275800758169 0.9950547536867305 0.999329299739067 0.9999092042625951 0.9999877116507956 0.9999983369439447 0.9999997749296758 0.999999969540041
Supported Browsers:
- Google Chrome 38 and above
- Firefox 25 and above
- Opera 25 and above
- Safari 8 and above
- Edge 12 and above