Identity matrix: Difference between revisions
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m (→{{header|Factor}}: update for new matrix vocabulary) |
m (→{{header|AppleScript}}: tidied, updated output.) |
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=={{header|AppleScript}}== |
=={{header|AppleScript}}== |
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<lang AppleScript> |
<lang AppleScript>--------------------- IDENTITY MATRIX ---------------------- |
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-- |
-- identityMatrix :: Int -> [(0|1)] |
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on |
on identityMatrix(n) |
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set xs to enumFromTo(1, n) |
set xs to enumFromTo(1, n) |
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script row |
script row |
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on |λ|(x) |
on |λ|(x) |
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script |
script col |
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on |λ|(i) |
on |λ|(i) |
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if i = x then |
if i = x then |
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end |λ| |
end |λ| |
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end script |
end script |
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map(col, xs) |
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map(result, xs) |
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end |λ| |
end |λ| |
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end script |
end script |
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map(row, xs) |
map(row, xs) |
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end |
end identityMatrix |
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--------------------------- TEST --------------------------- |
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on run |
on run |
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unlines(map(showList, ¬ |
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idMatrix(5) |
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identityMatrix(5))) |
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end run |
end run |
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-------------------- GENERIC FUNCTIONS --------------------- |
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-- enumFromTo :: Int -> Int -> [Int] |
-- enumFromTo :: Int -> Int -> [Int] |
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on enumFromTo(m, n) |
on enumFromTo(m, n) |
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if |
if m ≤ n then |
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set |
set lst to {} |
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| ⚫ | |||
| ⚫ | |||
| ⚫ | |||
| ⚫ | |||
else |
else |
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{} |
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end if |
end if |
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| ⚫ | |||
| ⚫ | |||
| ⚫ | |||
| ⚫ | |||
| ⚫ | |||
end enumFromTo |
end enumFromTo |
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-- intercalate :: String -> [String] -> String |
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on intercalate(delim, xs) |
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set {dlm, my text item delimiters} to ¬ |
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{my text item delimiters, delim} |
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| ⚫ | |||
set my text item delimiters to dlm |
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s |
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end intercalate |
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-- map :: (a -> b) -> [a] -> [b] |
-- map :: (a -> b) -> [a] -> [b] |
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end tell |
end tell |
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end map |
end map |
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-- Lift 2nd class handler function into 1st class script wrapper |
-- Lift 2nd class handler function into 1st class script wrapper |
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end script |
end script |
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end if |
end if |
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end mReturn |
end mReturn |
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-- showList :: [a] -> String |
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on showList(xs) |
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"[" & intercalate(", ", map(my str, xs)) & "]" |
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end showList |
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-- str :: a -> String |
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on str(x) |
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x as string |
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end str |
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-- unlines :: [String] -> String |
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on unlines(xs) |
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-- A single string formed by the intercalation |
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-- of a list of strings with the newline character. |
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set {dlm, my text item delimiters} to ¬ |
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{my text item delimiters, linefeed} |
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set s to xs as text |
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set my text item delimiters to dlm |
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s |
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end unlines</lang> |
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{{Out}} |
{{Out}} |
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<pre> |
<pre>[1, 0, 0, 0, 0] |
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[0, 1, 0, 0, 0] |
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[0, 0, 1, 0, 0] |
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[0, 0, 0, 1, 0] |
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[0, 0, 0, 0, 1]</pre> |
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=={{header|Applesoft BASIC}}== |
=={{header|Applesoft BASIC}}== |
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