1 Arctan(x) Calculator | Inverse tangent calculator
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Arctan Calculator

Online arctan(x) calculator. Inverse tangent calculator.

arctan
Angle in degrees:
°
Angle in radians:
rad
Calculation:

Tangent calculator ►

Arctangent definition

The arctangent function is the inverse function of y = tan(x).

arctan(y) = tan-1(y) = x+

For every

k = {...,-2,-1,0,1,2,...}

 

For example, If the tangent of 45° is 1:

tan(45°) = 1

Then the arctangent of 1 is 45°:

arctan(1) = tan-1(1) = 45°

Arctangent table

y x = arctan(y)
degrees radians
-1.732050808 -60° -π/3
-1 -45° -π/4
-0.577350269 -30° -π/6
0 0
0.577350269 30° π/6
1 45° π/4
1.732050808 60° π/3

Arctan on calculator

In order to calculate arctan(y) on a calculator:

  1. Press shift+tan buttons.
  2. Enter the angle.
  3. Press the = button.

Tangent calculator ►

 


See also
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MATH CALCULATORS
What are the changes of conditions for? With their assistance, you can understand conditions. How? Certain changes, which will be examined in the following section, enable us to move from a condition to an identical condition or condition impact. Handy utilization of such changes makes it conceivable to construct a chain of proportionate conditions and conditions results with a genuinely basic arrangement as far as a limited condition, which enables you to discover every one of the underlying foundations of the first condition by the foundations of the last condition.

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