ABCDEFG
unary functions
EXP(expr)=exponential
SIN(expr)=sine in radians
SIND(expr)=sine in degrees
COS(expr)=cosine in radians
COSD(expr)=cosine in degrees
TAN(expr)=tangent in radians
TAND(expr)=tangent in degrees
SINH(expr)=hyperbolic sine in radians
SINHD(expr)=hyperbolic sine in degrees
COSH(expr)=hyperbolic cosine in radians
COSHD(expr)=hyperbolic cosine in degrees
TANH(expr)=hyperbolic tangent in radians
TANHD(expr)=hyperbolic tangent in degrees
LOG(expr)=base 10 log
LN(expr)=natural log
SQRT(expr)=square root
ABS(expr)=absolute value
INT(expr)=integer part
ASIN(expr)=inverse sine in radians
ACOS(expr)=inverse cosine in radians
ATAN(expr)=inverse tangent in radians
ASINH(expr)=inverse hyperbolic sine in radians
ACOSH(expr)=inverse hyperbolic cosine in radians
ATANH(expr)=inverse hyperbolic tangent in radians
ERF(expr)=error function
ERFC(expr)=complementary error function
GAMMA(expr)=gamma function
SIGN(expr)=-1 if negative, +1 if positive
HEAVISIDE(expr)=0 if negative, +1 if positive
BOXCAR(expr)=+1 between 0 and 1, 0 otherwise

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