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You are here: Home / VBA / VBA Sin – Find Sine of Number in Radians Using VBA Sin() Function

VBA Sin – Find Sine of Number in Radians Using VBA Sin() Function

January 27, 2022 Leave a Comment

To find the sine of a number (in radians) with VBA, we can use the VBA Sin() function.

Sin(x)

In VBA, we can easily use trigonometric functions from the collection of VBA math functions. These VBA math functions allow us to perform trigonometry easily.

To find the sine of a number, in radians, we use the VBA Sin() function.

Below is the VBA syntax to find the sine of a number.

Sin(x)

The input to the Sin() function must be a double. The return value will be a double between -1 and 1.

Debug.Print Sin(WorksheetFunction.Pi/3)
Debug.Print Sin(0)
Debug.Print Sin(WorksheetFunction.Pi/2)

'Output:
0.8660254037844386
0.0
1.0

Converting Degrees to Radians for Input into Sin()

The Sin() function takes a number in radians as input. If your data is in degrees, you will need to convert the values to radians.

To convert degrees to radians, we can use the Worksheet Function Radians() to convert the value to radians and then pass it to the Sin() function.

Debug.Print Sin(WorksheetFunction.Radians(60))
Debug.Print Sin(WorksheetFunction.Radians(0))
Debug.Print Sin(WorksheetFunction.Radians(90))

'Output:
0.8660254037844386
0.0
1.0

Finding the Inverse Sine of a Number in VBA

With VBA, we can also find the inverses of the common trigonometric functions. The Asin() Worksheet function allows us to find the inverse of the sine of a number.

Below, we show that if we pass a number to Sin() and then call the VBA Asin() worksheet function, we get back the same number.

Debug.Print WorksheetFunction.Asin(Sin(WorksheetFunction.Pi/3))
Debug.Print WorksheetFunction.Pi/3

'Output:
1.0471975511965976
1.0471975511965976

Finding the Cosecant of a Number in VBA

To find the cosecant of a number, we can divide 1 by the sine of the number.

We can find the cosecant of a number easily with the VBA Sin() function. You can see how to find the cosecant of a number in the following VBA code.

Debug.Print 1/Sin(WorksheetFunction.Pi/3)

'Output:
1.1547005383792517

Hopefully this article has been beneficial for you to understand how to use the Sin() function in VBA to find the sine of a number.

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  • 3.  VBA Sinh Worksheet Function – Find Hyperbolic Sine of Number
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  • 5.  VBA Tan – Find Tangent of Number in Radians Using VBA Tan() Function
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  • 9.  VBA Asin Worksheet Function – Find Arcsine and Inverse Sine of Number
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