Constants
{
FROM = -2*pi //Internal constant;
TO = 2*pi //Internal constant;
STEP = (to-from)/200 //Internal constant;
COLWIDTH = _colwidth //Internal constant;
DETTOLERANCE = _dettolerance //Internal constant;
INTEGRTOLERANCE = _integrtolerance //Internal constant;
}

Function variable
{
x
}

User definitions
{
f(x)~Sin(x),
Fact(n)~if(eq(n,0),1,n*Fact(n-1)),
y=1/3,
z=Complex(pi,e)
}

Mathematical expressions
{
sin(y),
cos(z),
now,
today
}
