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Update 02-arrays.md added info that Matlab starts indexes on 1, and a… #260

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Update 02-arrays.md added info that Matlab starts indexes on 1, and a… #260

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6 changes: 4 additions & 2 deletions episodes/02-arrays.md
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Expand Up @@ -59,8 +59,10 @@
ans = 38
```

Indices are provided as (row, column). So the index `(5, 6)` selects the element
on the fifth row and sixth column.
Indices are provided as (row, column). In Matlab, indexing starts at 1.
So the index `(5, 6)` selects the element on the fifth row and sixth column.

![](fig/Matlab_Array_Indexes.svg){alt='8-by-8 matrix with rows for each label and column indicating their number. Rows numbered 1 to 8, as are columns'}

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 [missing file]: [](fig/Matlab_Array_Indexes.svg)

An index like `(5, 6)` selects a single element of
an array, but we can also access sections of the matrix, or [slices](../learners/reference.md#slice).
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