Below is the complete list of Windows ALT Codes for Math Symbols: Harpoon Arrows, their corresponding HTML entity numeric character references, and when available, their corresponding HTML entity named character references, and Unicode code points. This set of mathematical harpoon arrow symbols includes double-barbed harpoons, paired harpoons and modified harpoons.
If you are new to ALT codes and need detailed instructions on how to use ALT codes in your Microsoft Office documents such as Word, Excel & Powerpoint or applicable Microsoft Windows programs & applications, please read How to Use ALT Codes to Enter Special Characters.
For more sets of math symbols, see ALT Codes for Math Symbols.
For the the complete list of the first 256 Windows ALT Codes, visit Windows ALT Codes for Special Characters & Symbols.