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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 ** sin() function** in Scala returns the sine of a number in the radians. The illustration below shows the mathematical representation of the

`sin()`

function.

- The
`scala.math._`

header file is required for this function.

- This
`sin()`

function only works for right-angled triangles.

```
def sin(x: Double): Double
```

This function requires a number that represents an angle in radians as a parameter.

In order to convert `degrees`

to `radians`

, use the following formula:

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

`sin()`

returns the sine of a number in radians which is sent as a parameter.

If the parameter value is NaN, positive infinity, or negative infinity, then it returns NaN.

import scala.math._object Main extends App {//positive number in radiansprintln(s"The value of sin(2.3) = ${sin(2.3)}");// negative number in radiansprintln(s"The value of sin(-2.3) = ${sin(-2.3)}");//converting the degrees angle into radians and then applying sin()// degrees = 45.0// PI = 3.14159265// result first converts degrees to radians then apply sinprintln(s"The value of sin(45.0) = ${sin(45.0 * (Pi / 180.0))}");//error outputsprintln(s"The value of sin(Double.PositiveInfinity) = ${sin(Double.PositiveInfinity)}");println(s"The value of sin(Double.NegativeInfinity) = ${sin(Double.NegativeInfinity)}");println(s"The value of sin(Double.NaN) = ${sin(Double.NaN)}");}

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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.

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