DEFINE_MATH_BUILTIN (ACOS,  "acos", 1)
DEFINE_MATH_BUILTIN (ASIN,  "asin", 1)
DEFINE_MATH_BUILTIN (ATAN, "atan", 1)
DEFINE_MATH_BUILTIN (ATAN2, "atan2", 2)
DEFINE_MATH_BUILTIN (COS, "cos", 1)
DEFINE_MATH_BUILTIN (COSH,  "cosh", 1)
DEFINE_MATH_BUILTIN (EXP, "exp", 1)
DEFINE_MATH_BUILTIN (LOG, "log", 1)
DEFINE_MATH_BUILTIN (LOG10, "log10", 1)
DEFINE_MATH_BUILTIN (SIN, "sin", 1)
DEFINE_MATH_BUILTIN (SINH,  "sinh", 1)
DEFINE_MATH_BUILTIN (SQRT, "sqrt", 1)
DEFINE_MATH_BUILTIN (TAN, "tan", 1)
DEFINE_MATH_BUILTIN (TANH,  "tanh", 1)