The following functions are available:
sinh(x)
cosh(x)
tanh(x)
sin (x1)
cos (x)
tan (x)
exp (x)
log (x)
squish(x)
gauss(x)
abs (x)
max(x, y)
min(x, y)
gt(x, y)
lt(x, y)
eq(x, y)
bits2qp(bits)
qp2bits(qp)