TAN(number)

Returns the tangent of a number.

numberThe number you want the tangent of.

Remarks

* This function is periodic with a period of 2PI.
* The "number" is the angle in radians.
* If "number" is not numeric, then #VALUE! is returned. Example 14.
* If your argument is in degrees, multiply it by PI/180 to convert it to radians.
* If you want the result to be in degrees, multiply the result by 180/PI.
* You can use the ATAN function to return the arc-tangent. Example 15.
* You can use the COS function to return the cosine.
* You can use the SIN function to return the sine.
* You can use the DEGREES function to convert from radians to degrees.
* For a working example refer to the Quant > Trigonometric Functions page.
* For the Microsoft documentation refer to support.office.com

 A
1=TAN(0) = 0.000
2=TAN(0.5) = 0.546
3=TAN(1) = 1.557
4=TAN(PI()/2) = 1.632E+16
5=TAN(2.5) = -0.747
6=TAN(PI()) = 0.000
7=TAN(-0.5) = -0.546
8=TAN(-1) = -1.557
9=TAN(-PI()/2) = -1.632E+16
10=TAN(-2.5) = 0.747
11=TAN(-PI()) = 0.000
12=TAN(60*PI()/180) = 1.732
13=TAN(-50) = 0.272
14=TAN(-1) = -1.557
15=TAN(ATAN(0.5)) = 0.5
16=TAN("some text") = #VALUE!

1 - What is the tangent of 0 radians.
2 - What is the tangent of 0.5 radians.
3 - What is the tangent of 1 radian.
4 - What is the tangent of (PI/2) radians. This is a really large number.
5 - What is the tangent of 2.5 radians.
6 - What is the tangent of PI radians.
7 - What is the tangent of -0.5 radians.
8 - What is the tangent of -1 radian.
9 - What is the tangent of (-PI/2) radians
10 - What is the tangent of -2.5 radians.
11 - What is the tangent of -PI radians.

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