Matched context for sum and invert

The page lists matched contexts for sum and invert.

Share - sum	Share - invert	Phrase
19.55%	5.19%	{sum or invert} signal [perform operation]
5.85%	5.56%	{sum or invert} output [perform operation]
3.25%	1.04%	{sum or invert} voltage [perform operation]
5.52%	0.51%	{sum or invert} value [perform operation]
4.44%	0.54%	amplifier [does] {sum or invert}
2.73%	0.54%	{sum or invert} input [perform operation]
2.54%	0.61%	{sum or invert} pulse [perform operation]
1.03%	0.14%	{sum or invert} modal can