Arctan of 3/2

Arcsin, Arccos, Arctan, Arccot
Function
x

What is arctan(3/2)?

Answer

arctan(3/2) ≈
56.3099° ≈ 0.9828 rad

Range: arctan x is an angle strictly between −90° and 90°, so the answer is unique.

≈ — the value is not a table one; rounded to 4 decimal places.

3/2 = 1.5.

arctan(3/2) is the angle α in (−90°, 90°) with tan α = 3/2.

tan 56.3099° ≈ 1.5000

xyOPT

α = arctan(3/2) ≈ 56.3099°

P ≈ (0.5547, 0.8321)

T(1, 3/2) is where line OP meets the line x = 1; highlighted: tan α = 3/2.

All four inverse functions of 3/2
FunctionDegreesRadians
arcsin(3/2)does not exist—
arccos(3/2)does not exist—
arctan(3/2)≈ 56.3099°≈ 0.9828
arccot(3/2)≈ 33.6901°≈ 0.5880

See Also

FAQ

What is arctan(3/2)?

arctan(3/2) ≈ 56.3099° ≈ 0.9828 rad

How to convert arctan(3/2) to radians?

Multiply the angle in degrees by π/180: 56.3099° × π/180 ≈ 0.9828 rad.

Why does a calculator show 0.9828 for arctan(3/2)?

The calculator is in radian mode (RAD) and gives the angle in radians: arctan(3/2) ≈ 0.9828 rad. In degrees (DEG) it is ≈ 56.3099°.