<s>
In	O
computing	O
,	O
goal	B-General_Concept
seeking	I-General_Concept
is	O
the	O
ability	O
to	O
calculate	O
backward	O
to	O
obtain	O
an	O
input	O
that	O
would	O
result	O
in	O
a	O
given	O
output	O
.	O
</s>
<s>
This	O
can	O
also	O
be	O
called	O
what-if	O
analysis	O
or	O
backsolving	B-General_Concept
.	O
</s>
<s>
Basic	O
goal	B-General_Concept
seeking	I-General_Concept
functionality	O
is	O
built	O
into	O
most	O
modern	O
spreadsheet	B-Application
packages	O
such	O
as	O
Microsoft	B-Application
Excel	I-Application
.	O
</s>
