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-rw-r--r--matrix/init.lua17
1 files changed, 17 insertions, 0 deletions
diff --git a/matrix/init.lua b/matrix/init.lua
index 7bbc6a4..1a8925f 100644
--- a/matrix/init.lua
+++ b/matrix/init.lua
@@ -27,6 +27,23 @@ function nerv.Matrix:__tostring__()
return table.concat(strt)
end
+-- gen: a function takes take indices of the matrix and return the generated
+-- all entrys in the matrix will be assigned by calling gen(i, j)
+function nerv.Matrix:generate(gen)
+ if (self:nrow() == 1) then
+ for j = 0, self:ncol() - 1 do
+ self[j] = gen(j)
+ end
+ else
+ for i = 0, self:nrow() - 1 do
+ local row = self[i]
+ for j = 0, self:ncol() - 1 do
+ row[j] = gen(i, j)
+ end
+ end
+ end
+end
+
nerv.MMatrixInt.fmt = "%d "
function nerv.CuMatrix:__add__(b)