Operators, Functions, and Constants
When you use trigonometric functions in equations, specify the angular units by selecting Degrees or Radians in Angular Equation Units in the Equations dialog box.
| Name | Notes | |
|---|---|---|
| Operator | ||
| + | plus sign | addition |
| - | minus sign | subtraction |
| * | asterisk | multiplication |
| / | forward dash | division |
| ^ | caret | exponentiation |
| Function | ||
| sin (a) | sine | a is the angle; returns the sine ratio |
| cos (a) | cosine | a is the angle; returns the cosine ratio |
| tan (a) | tangent | a is the angle; returns the tangent ratio |
| sec (a) | secant | a is the angle; returns the secant ratio |
| cosec (a) | cosecant | a is the angle; returns the cosecant ratio |
| cotan (a) | cotangent | a is the angle; returns the cotangent ratio |
| arcsin (a) | inverse sine | a is the sine ratio; returns the angle |
| arccos (a) | inverse cosine | a is the cosine ratio; returns the angle |
| atn (a) | inverse tangent | a is the tangent ratio; returns the angle |
| arcsec (a) | inverse secant | a is the secant ratio; returns the angle |
| arccosec (a) | inverse cosecant | a is the cosecant ratio; returns the angle |
| arccotan (a) | inverse cotangent | a is the cotangent ratio; returns the angle |
| abs (a) | absolute value | returns the absolute value of a |
| exp (n) | exponential | returns e raised to the power of n |
| log (a) | logarithmic | returns the natural log of a to the base e |
| sqr (a) | square root | returns the square root of a |
| int (a) | integer | returns a as an integer |
| sgn (a) | sign | returns the sign of a as -1 or 1
For example: sgn(-21) returns -1 |
| Constant | ||
| pi | pi | ratio of the circumference to the diameter of a circle (3.14...) |