# Other Commonly Used Functions

+ Geometric function:
  + `PI(), DEGREES(), RADIANS()`  
+ Trigonometric function:
  + `SIN(), COS(), TAN(), COT(), ASIN(), ACOS(), ATAN(), ATAN2()`  
+ Other features:
  + `EXP(), LN(), LOG(), LOG2(), LOG10(), POWER(), SQRT(), MOD(), RAND()`  

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- Geometric function
  - `PI()`  return the value of pi
  - `DEGREES()`  return the parameters converted from radians to degrees
  - `RADIANS()`  return the parameters converted from degrees to radians

- Trigonometric function
  - `SIN()`  return the sine of the argument
  - `COS()`  return the cosine value of the parameter
  - `TAN()`  return the tangent value of the parameter
  - `COT()`  return the cotangent value of the parameter
  - `ASIN()`  return the arcsine value of the argument
  - `ACOS()`  return the inverse cosine of the argument
  - `ATAN()`  return the inverse tangent of the parameter

- Other features
  - `EXP()`  return the value of e (base of natural logarithm) after the specified power
  - `LN()`  return the natural logarithm of the parameter
  - `LOG()`  return the natural logarithm of the first argument
  - `LOG2()`  return the base-2 logarithm of the argument
  - `LOG10()`  return the base-10 logarithm of the argument
  - `POWER()`  return the result value of the specified power of the parameter
  - `SQRT()`  return quadratic root of a non-negative number
  - `MOD()`  return the remainder
  - `RAND()`  return a random floating point value