Wolfram Computation Meets Knowledge

ArcCosDegree

Contributed by: Paco Jain (Wolfram Research)

Computes the inverse cosine of a number and returns a result in degrees

ResourceFunction["ArcCosDegree"][x]

computes the inverse cosine of x in degrees.

Details and Options

Mathematical function, suitable for both symbolic and numerical manipulation.
ArcCosDegree[x] is undefined outside the range -1 to 1.
ArcCosDegree[x] always returns a value in the range 0 to 180.
For certain special arguments, ArcCosDegree automatically evaluates to exact values.
ArcCosDegree can be evaluated to arbitrary numerical precision.
ArcCosDegree automatically threads over lists.

Examples

Basic Examples

Compute the inverse cosine of a number:

In[1]:=
ResourceFunction["ArcCosDegree"][1]
Out[1]=

Plot the function over its range given range:

In[2]:=
Plot[ResourceFunction["ArcCosDegree"][x], {x, -2, 2}]
Out[2]=

Scope

Evaluate numerically:

In[3]:=
ResourceFunction["ArcCosDegree"][0.63]
Out[3]=

Evaluate to high precision:

In[4]:=
N[ResourceFunction["ArcCosDegree"][-2/10], 50]
Out[4]=

Resource History