php-ai /
php-ml
| @@ 236-244 (lines=9) @@ | ||
| 233 | * |
|
| 234 | * @return array |
|
| 235 | */ |
|
| 236 | public static function mul(array $m1, array $m2) |
|
| 237 | { |
|
| 238 | $res = []; |
|
| 239 | foreach ($m1 as $i => $val) { |
|
| 240 | $res[] = $val * $m2[$i]; |
|
| 241 | } |
|
| 242 | ||
| 243 | return $res; |
|
| 244 | } |
|
| 245 | ||
| 246 | /** |
|
| 247 | * Element-wise <b>division</b> of two vectors of the same size |
|
| @@ 254-262 (lines=9) @@ | ||
| 251 | * |
|
| 252 | * @return array |
|
| 253 | */ |
|
| 254 | public static function div(array $m1, array $m2) |
|
| 255 | { |
|
| 256 | $res = []; |
|
| 257 | foreach ($m1 as $i => $val) { |
|
| 258 | $res[] = $val / $m2[$i]; |
|
| 259 | } |
|
| 260 | ||
| 261 | return $res; |
|
| 262 | } |
|
| 263 | ||
| 264 | /** |
|
| 265 | * Element-wise <b>addition</b> of two vectors of the same size |
|
| @@ 273-281 (lines=9) @@ | ||
| 270 | * |
|
| 271 | * @return array |
|
| 272 | */ |
|
| 273 | public static function add(array $m1, array $m2, int $mag = 1) |
|
| 274 | { |
|
| 275 | $res = []; |
|
| 276 | foreach ($m1 as $i => $val) { |
|
| 277 | $res[] = $val + $mag * $m2[$i]; |
|
| 278 | } |
|
| 279 | ||
| 280 | return $res; |
|
| 281 | } |
|
| 282 | ||
| 283 | /** |
|
| 284 | * Element-wise <b>subtraction</b> of two vectors of the same size |
|
| @@ 322-330 (lines=9) @@ | ||
| 319 | * |
|
| 320 | * @return array |
|
| 321 | */ |
|
| 322 | public static function divs(array $m1, float $m2) |
|
| 323 | { |
|
| 324 | $res = []; |
|
| 325 | foreach ($m1 as $val) { |
|
| 326 | $res[] = $val / ($m2 + 1e-32); |
|
| 327 | } |
|
| 328 | ||
| 329 | return $res; |
|
| 330 | } |
|
| 331 | ||
| 332 | /** |
|
| 333 | * Element-wise <b>addition</b> of a vector with a scalar |
|
| @@ 341-349 (lines=9) @@ | ||
| 338 | * |
|
| 339 | * @return array |
|
| 340 | */ |
|
| 341 | public static function adds(array $m1, float $m2, int $mag = 1) |
|
| 342 | { |
|
| 343 | $res = []; |
|
| 344 | foreach ($m1 as $val) { |
|
| 345 | $res[] = $val + $mag * $m2; |
|
| 346 | } |
|
| 347 | ||
| 348 | return $res; |
|
| 349 | } |
|
| 350 | ||
| 351 | /** |
|
| 352 | * Element-wise <b>subtraction</b> of a vector with a scalar |
|
