<s>
Bürgi	O
's	O
Kunstweg	B-Algorithm
is	O
a	O
set	O
of	O
algorithms	O
invented	O
by	O
Jost	O
Bürgi	O
at	O
the	O
end	O
of	O
the	O
16th	O
century	O
.	O
</s>
<s>
The	O
principles	O
of	O
iterative	O
sine	O
table	O
calculation	O
through	O
the	O
Kunstweg	B-Algorithm
are	O
as	O
follows	O
:	O
cells	O
in	O
a	O
column	O
sum	O
up	O
the	O
values	O
of	O
the	O
two	O
previous	O
cells	O
in	O
the	O
same	O
column	O
.	O
</s>
<s>
According	O
to	O
Folkerts	O
,	O
this	O
was	O
the	O
first	O
step	O
towards	O
difference	B-Algorithm
calculus	I-Algorithm
.	O
</s>
