Excel VBA Cos Function

VBA Cos Function: The Cos function in VBA returns the cosine value for a supplied angle.

Syntax

Cos (Number)

Parameter

Number (required) –This parameter represents the number that you want the absolute value of.

Return

This function returns the cosine value for a supplied angle.

Example 1

Sub CosFunction_Example1()
 ' Calculating the cosine for the specified number.
 Dim cos_val1 As Double
 Dim cos_val2 As Double
 Dim cos_val3 As Double
 cos_val1 = Cos(90)
 ' The variable cos_val1 will return value -0.448073616.
 Cells(1, 1).Value = cos_val1 
 cos_val2 = Cos(0)
 ' The variable cos_val2 will return value 1.
 Cells(2, 1).Value = cos_val2
 cos_val3 = Cos(3.14159265358979)
 ' The variable cos_val3 will return value -1.
 Cells(3, 1).Value = cos_val3
 End Sub 

Output

-0.448073616

1

-1

Example 2

Sub CosFunction_Example2()
 ' Calculating the cosine for the specified number.
 Dim cos_val As Double
 cos_val1 = Cos(0.785398163397448)
 ' The variable cos_val1 will return value 0.
 Cells(1, 1).Value = cos_val
 End Sub 

Output

0

Example 3

Sub CosFunction_Example3()
 ' Calculating the cosine for the specified number.
 Dim cos_val As Double
 Const pi = 3.14159265358979
 ' Converting 60 degrees to radians by multiplying by pi/180.
 cos_val = Cos(60 * pi / 180)
 ' The variable cos_val will return radina 0.500000000000001.
 Cells(1, 1).Value = cos_val
 End Sub 

Output

Example 4

Sub CosFunction_Example4()
 ' Calculating the cosine for the specified number.
 Dim cos_val As Double
 'for other formats apart from number
 cos_val = Cos("42/a")
 ' The variable atn_val1 will return mismatch error.
 Cells(1, 1).Value = cos_val
 End Sub 

Output