U.M. (Windows)

Summary of functions C-13
Trigonometric functions
Syntax Definition
Atan (number) Returns the trigonometric arc (inverse) tangent of
number. The arc tangent is the angle, in radians,
whose tangent equals number.
Cos (number) Returns the cosine of the angle (in radians) of
number
Degrees (number) Converts number from radians to degrees
(π/180 radians)
Ln (number) Returns the base-e (natural) logarithm of number
Log (number) Returns the common logarithm (base 10) of number,
which is any positive value
PI Returns the value of pi (π), approximately 3.14159
Radians (number) Converts degrees (π/180 radians) in number to
radians. Parameters for trigonometric functions
must be in radians—use this function to convert
values from degrees to radians within a formula.
Sin (number) Returns the sine of an angle expressed in radians
Tan (number) Returns the tangent of the angle (in radians) in
number. Tangents for values of 90 degrees (π/2
radians) or multiples are undefined (infinite).
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