Get elements of lists

How-to 9 steps, run in order in one session. Every step was executed against the engine and the output below is what it produced.

Step 1

v = Range[10] ^ 2

Output

{1, 4, 9, 16, 25, 36, 49, 64, 81, 100}

Step 2

Part[v, 3]

Output

Step 3

v[[3]]

Output

Step 4

v[[1 ;; 5]]

Output

{1, 4, 9, 16, 25}

Step 5

v[[5 ;; 8]]

Output

{25, 36, 49, 64}

Step 6

v[[-7 ;; ]]

Output

{16, 25, 36, 49, 64, 81, 100}

Step 7

m = Partition[Range[25] ^ 2, 5]

Output

{{1, 4, 9, 16, 25}, {36, 49, 64, 81, 100}, {121, 144, 169, 196, 225}, {256, 289, 324, 361, 400}, {441, 484, 529, 576, 625}}

Step 8

MatrixForm[m]

Output

MatrixForm[{{1, 4, 9, 16, 25}, {36, 49, 64, 81, 100}, {121, 144, 169, 196, 225}, {256, 289, 324, 361, 400}, {441, 484, 529, 576, 625}}]

Step 9

m[[1]]

Output

{1, 4, 9, 16, 25}

Get elements of lists

Functions used