# Ruby CMath sin() Method with example

sin() method is CMath class which is used to returns the sine of the given value.

Syntax: Math.sin(z)

Parameter: Here, z is the value whose sine is to be calculated.

Returns: This method returns the sine value of the z.

Example 1:

 `# Ruby code for sin() method ` `require ``'cmath'` ` `  `# Initializing value   ` `a = ``0``.``3584` `b = ``2` ` `  `# Printing result    ` `puts ``"sin value of a : #{CMath.sin(a)}\n\n"`   `puts ``"sin value of b : #{CMath.sin(b)}\n\n"`

Output:

```sin value of a : 0.35077634808518837

sin value of b : 0.9092974268256817
```

Example 2:

 `# Ruby code for sin() method ` `require ``'cmath'` ` `  `# Initializing value   ` `a = ``0` `b = -``0``.``247` ` `  `# Printing result    ` `puts ``"sin value of a : #{CMath.sin(a)}\n\n"`   `puts ``"sin value of b : #{CMath.sin(b)}\n\n"`

Output:

```sin value of a : 0.0

sin value of b : -0.24449611303251328
```

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