At the link below there is a statement, describing how U+0061 and U+0332 together can be used to create the APL symbol `a underbar` because U+0332 has the combining characteristic which enables overstrikes in unicode.
http://unicode.org/book/ch12.pdf I want to overstrike alphabetic characters with directional arrows such as the following ones, but cannot see how to give these characters the combining characteristic oversstriking would require. Is that possible; I cannot find any existing combining characters that suggest any directionality. 16b2190 16b2191 16b2192 16b2193 16b2196 16b2197 16b2198 16b2199 4 u: 16b2190 + i. 10 NB. try this in J to see the arrows -- (B=) ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
