a = abs();
b = sign();
c = rands();
d = min();
e = max();
f = sin();
g = cos();
h = asin();
i = acos();
j = tan();
k = atan();
l = atan2();
m = round();
n = ceil();
o = floor();
p = pow();
q = sqrt();
r = exp();
s = log();
t = ln();
u = str();
v = lookup();
w = dxf_dim();
x = dxf_cross();
y = version();
z = version_num();
aa = len();
bb = search();