How do I convert the vector to matrix 16 * 16

Can anyone help me

In this function i have vector , i want convert the vector to matrix 16 * 16

function inv_s_box = s_box_inversion (s_box)

for i = 1 : 256

inv_s_box(s_box(i) + 1) = i ;%- 1;

end

[Rik]

I have restored your original question from the Google cache.

[Stephen23]

http://web.archive.org/web/20210308095856/https://www.mathworks.com/matlabcentral/answers/763321-how-do-i-convert-the-vector-to-matrix-16-16

Answer 1

[Cris LaPierre]

Use reshape

inv_s_vox = reshape(1:256,[16,16])

inv_s_vox = 16×16

1 17 33 49 65 81 97 113 129 145 161 177 193 209 225 241 2 18 34 50 66 82 98 114 130 146 162 178 194 210 226 242 3 19 35 51 67 83 99 115 131 147 163 179 195 211 227 243 4 20 36 52 68 84 100 116 132 148 164 180 196 212 228 244 5 21 37 53 69 85 101 117 133 149 165 181 197 213 229 245 6 22 38 54 70 86 102 118 134 150 166 182 198 214 230 246 7 23 39 55 71 87 103 119 135 151 167 183 199 215 231 247 8 24 40 56 72 88 104 120 136 152 168 184 200 216 232 248 9 25 41 57 73 89 105 121 137 153 169 185 201 217 233 249 10 26 42 58 74 90 106 122 138 154 170 186 202 218 234 250

Answer 2

[William Rose]

@sarah,

I assume that s_box is the vector you want to reshape.

s_box = reshape(s_box,[16,16])

Answer 3

[sarah]

think you so much