Arithmetic Functions

(truncate <expr>)  TRUNCATES A FLOATING POINT NUMBER TO AN INTEGER
    <expr>      the number
    returns     the result of truncating the number

(float <expr>)  CONVERTS AN INTEGER TO A FLOATING POINT NUMBER
    <expr>      the number
    returns     the result of floating the integer

(+ <expr>...)  ADD A LIST OF NUMBERS
    <expr>      the numbers
    returns     the result of the addition

(- <expr>...)  SUBTRACT A LIST OF NUMBERS OR NEGATE A SINGLE NUMBER
    <expr>      the numbers
    returns     the result of the subtraction

(* <expr>...)  MULTIPLY A LIST OF NUMBERS
    <expr>      the numbers
    returns     the result of the multiplication

(/ <expr>...)  DIVIDE A LIST OF NUMBERS
    <expr>      the numbers
    returns     the result of the division

(1+ <expr>)  ADD ONE TO A NUMBER
    <expr>      the number
    returns     the number plus one

(1- <expr>)  SUBTRACT ONE FROM A NUMBER
    <expr>      the number
    returns     the number minus one

(rem <expr>...)  REMAINDER OF A LIST OF NUMBERS
    <expr>      the numbers
    returns     the result of the remainder operation

(min <expr>...)  THE SMALLEST OF A LIST OF NUMBERS
    <expr>      the expressions to be checked
    returns     the smallest number in the list

(max <expr>...)  THE LARGEST OF A LIST OF NUMBERS
    <expr>      the expressions to be checked
    returns     the largest number in the list

(abs <expr>)  THE ABSOLUTE VALUE OF A NUMBER
    <expr>      the number
    returns     the absolute value of the number

(gcd <n1> <n2>...)  COMPUTE THE GREATEST COMMON DIVISOR
    <n1>        the first number (integer)
    <n2>        the second number(s) (integer)
    returns     the greatest common divisor

(random <n>)  COMPUTE A RANDOM NUMBER BETWEEN 1 and N-1
    <n>         the upper bound (integer)
    returns     a random number

(sin <expr>)  COMPUTE THE SINE OF A NUMBER
    <expr>      the floating point number
    returns     the sine of the number

(cos <expr>)  COMPUTE THE COSINE OF A NUMBER
    <expr>      the floating point number
    returns     the cosine of the number

(tan <expr>)  COMPUTE THE TANGENT OF A NUMBER
    <expr>      the floating point number
    returns     the tangent of the number

(asin <expr>)  COMPUTE THE ARC SINE OF A NUMBER
    <expr>      the floating point number
    returns     the arc sine of the number

(acos <expr>)  COMPUTE THE ARC COSINE OF A NUMBER
    <expr>      the floating point number
    returns     the arc cosine of the number

(atan <expr>)  COMPUTE THE ARC TANGENT OF A NUMBER
    <expr>      the floating point number
    returns     the arc tangent of the number

(expt <x-expr> <y-expr>)  COMPUTE X TO THE Y POWER
    <x-expr>    the floating point number
    <y-expr>    the floating point exponent
    returns     x to the y power

(exp <x-expr>)  COMPUTE E TO THE X POWER
    <x-expr>    the floating point number
    returns     e to the x power

(sqrt <expr>)  COMPUTE THE SQUARE ROOT OF A NUMBER
    <expr>      the floating point number
    returns     the square root of the number

(< <n1> <n2>...)  TEST FOR LESS THAN
(<= <n1> <n2>...)  TEST FOR LESS THAN OR EQUAL TO
(= <n1> <n2>...)  TEST FOR EQUAL TO
(/= <n1> <n2>...)  TEST FOR NOT EQUAL TO
(>= <n1> <n2>...)  TEST FOR GREATER THAN OR EQUAL TO
(> <n1> <n2>...)  TEST FOR GREATER THAN
    <n1>        the first number to compare
    <n2>        the second number to compare
    returns     the result of comparing <n1> with <n2>...