This beta has a few language changes: * Fold (u F:. v) has been redefined to execute v first, then, u
* u0`u1`...@v now has infinite rank. v is executed first to decide the cell-rank, and which verb is to be executed for each cell; then the u verbs are executed, either one cell at a time or in one call to each verb, to execute on a list of cells at once. Therefore, each u verb needs to be able to handle single cell or a list of input cells.
* semiduals are supported at last: x u&.:(v`a:) y applies v only to x, and x u&.:(a:`v) y applies v only to y.
Henry Rich On 5/14/2020 3:49 PM, Eric Iverson wrote:
The first 902 beta release is available for windows/macos/linux. https://code.jsoftware.com/wiki/System/Installation/J902 Availability of new releases will be announced here. Questions, problems, etc should be addressed to the beta forum. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
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