Trusted answers to developer questions

Harris Amjad

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

The ** tan() function** calculates and returns the tangent of a number. To be more specific, it returns the tangent of a number in radians.

Figure 1 shows the mathematical representation of the `tan()`

function.

Note:

- This function is present in the
`Math`

module.- This
`tan()`

function only works for right-angled triangles.

```
tan(num)
```

This function requires a `number`

that represents an `angle`

in `radians`

as a parameter.

To convert `degrees`

to `radians`

, use the following formula.

```
radians = degrees * ( pi / 180.0 )
```

`tan()`

returns the `tangent`

of a number that is set as a parameter. The return value is in the range `[-1,1]`

.

#positive number in radiansputs "The value of tan(2.3) : ", Math.tan(2.3)#negative number in radiansputs "The value of tan(-2.3) : ", Math.tan(-2.3)#converting the degrees angle into radians and then applying tan()#degrees = 45#PI = 3.14159265result = 45 * (Math::PI / 180.0)puts "The value of tan(#{result}) : ", Math.tan(result)

RELATED TAGS

ruby

math

communitycreator

CONTRIBUTOR

Harris Amjad

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

Keep Exploring

Related Courses