{ { COS | SIN | TAN | ACOS | ASIN | ATAN } (arg) |
ATAN2 (x, y)
}
Syntax Elements
- COS
- Cosine. The cosine of an angle is the ratio of two sides of a right triangle. The ratio is the length of the side adjacent to the angle divided by the length of the hypotenuse.
- COS (arg) is a value in radians in the range -1 to 1, inclusive.
- SIN
- Sine. The sine of an angle is the ratio of two sides of a right triangle. The ratio is the length of the side opposite to the angle divided by the length of the hypotenuse.
- SIN (arg) is a value in radians in the range -1 to 1, inclusive.
- TAN
- Tangent. The tangent of an angle is the ratio of two sides of a right triangle. The ratio is the length of the side opposite to the angle divided by the length of the side adjacent to the angle.
- TAN (arg) is a value in radians.
- ACOS
- Arccosine. The arccosine is the angle whose cosine is the argument.
- ACOS (arg) is an angle in the range 0 to π radians, inclusive.
- ASIN
- Arcsine. The arcsine is the angle whose sine is the argument.
- ASIN (arg) is an angle in the range -π /2 to π /2 radians, inclusive.
- ATAN
- Arctangent. The arctangent is the angle whose tangent is the argument.
- ATAN (arg) is an angle in the range -π /2 to π /2 radians, inclusive.
- ATAN2
- ATAN2 (arg) is an angle between -π and π radians, excluding -π.
- A positive result represents a counterclockwise angle from the x-axis. A negative result represents a clockwise angle.
- ATAN2(x,y) equals ATAN(y/x), except that x can be 0 in ATAN2(x,y) and x cannot be 0 in ATAN(y/x) since this results in a divide by zero error.
- If both x and y are 0, an error is returned.
-
arg
- Any valid numeric expression that expresses an angle in radians.
-
x
- The x-coordinate of a point to use in the arctangent2 calculation.
-
y
- The y-coordinate of a point to use in the arctangent2 calculation.