A common criticism of Excel's SWITCH function is that it only handles exact matches, such as turning the number 1 into the word "Active." If you want to use greater-than or less-than symbols, most ...

Abstract: A two-section broadband coupler with wide-range phase differences and power-dividing ratios is proposed. Closed-form design equations for the proposed couplers are derived. For verification, ...

There are tools that automatically compare the differences between two PDF files, but you can't detect the difference well unless they are almost the same text. When comparing PDF files with a revised ...