Apple Numbers '08 - Manual (Page 201)

Chapter 12 Dictionary of Functions 201
Trigonometric Functions
The trigonometric functions take radians as arguments.
Numbers provides these trigonometric functions.
SIGN (page 271) Returns 1 when the argument is positive, –1 when the argument is
negative, and 0 when it’s zero.
SQRT (page 274) Calculates the square root of a number.
SUM (page 277) Calculates the sum of a set of numbers.
SUMIF (page 278) Calculates the sum of a set of numbers that satisfy a specified
condition.
SUMPRODUCT (page 278) Calculates the sum of the products of corresponding numbers in
two or more ranges.
SUMSQ (page 279) Calculates the sum of the squares of a set of numbers.
TRUNC (page 283) Truncates a decimal number to a specified number of digits.
Function Description
Function Description
ACOS (page 206) Calculates the inverse cosine (arccosine) in the range 0 to pi
radians.
ACOSH (page 207) Calculates the inverse hyperbolic cosine of a number.
ASIN (page 209) Calculates the inverse sine (arcsine) in the range –pi/2 through pi/2
radians.
ASINH (page 209) Calculates the hyperbolic arcsine (inverse hyperbolic sine).
ATAN (page 209) Calculates the inverse tangent (arctangent) in the range –pi/2
through pi/2 radians.
ATAN2 (page 210) Finds the angle, relative to the positive x-axis, of a line passing
through the origin and a specified point.
ATANH (page 210) Calculates the inverse hyperbolic tangent of a number.
COS (page 217) Calculates the cosine of an angle expressed in radians.
COSH (page 218) Calculates the hyperbolic cosine of a number.
DEGREES (page 227) Converts radians to degrees.
RADIANS (page 263) Converts degrees to radians.
SIN (page 271) Calculates the sine of an angle expressed in radians.
SINH (page 272) Calculates the hyperbolic sine of a number.
TAN (page 280) Calculates the tangent of an angle expressed in radians.
TANH (page 281) Calculates the hyperbolic tangent of a number.