sgn(x) return sign Returns -1 if x is less than 0. Returns 0 if x is equal to 0. Returns 1 if x is greater than 0 sign(x,y) transfer Returns the absolute value of x, with the sign sign of y: (sign of y)|x| def(x) parameter Returns 1 if parameter x is defined. defined Returns 0 if parameter x is not defined. min(x,y) smaller of Returns the numeric minimum of x and y two args max(x,y) larger of Returns the numeric maximum of x and y two args [cond] ?x : y ternary Returns x if cond is not zero. Otherwise, operator returns y. .param z='condition ? x:y' relational Returns 1 if the left operand is less than the < operator right operand. Otherwise, returns 0. (less than) .param x=y<z (y less than z) <= relational Returns 1 if the left operand is less than or operator equal to the right operand. Otherwise, (less than returns 0. or equal) .param x=y<=z (y less than or equal to z) > relational Returns 1 if the left operand is greater than operator the right operand. Otherwise, returns 0. (greater .param x=y>z (y greater than z) than)
sgn(x) return sign Returns -1 if x is less than 0. Returns 0 if x is equal to 0. Returns 1 if x is greater than 0 sign(x,y) transfer sign Returns the absolute value of x, with the sign of y: (sign of y)|x| def(x) parameter defined Returns 1 if parameter x is defined. Returns 0 if parameter x is not defined. min(x,y) smaller of two args Returns the numeric minimum of x and y max(x,y) larger of two args Returns the numeric maximum of x and y [cond] ?x : y ternary operator Returns x if cond is not zero. Otherwise, returns y. .param z='condition ? x:y' < relational operator (less than) Returns 1 if the left operand is less than the right operand. Otherwise, returns 0. .param x=y<z (y less than z) <= relational operator (less than or equal) Returns 1 if the left operand is less than or equal to the right operand. Otherwise, returns 0. .param x=y<=z (y less than or equal to z) > relational operator (greater than) Returns 1 if the left operand is greater than the right operand. Otherwise, returns 0. .param x=y>z (y greater than z)