php-ai /
php-ml
| @@ 234-242 (lines=9) @@ | ||
| 231 | * |
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| 232 | * @return array |
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| 233 | */ |
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| 234 | public static function mul(array $m1, array $m2) |
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| 235 | { |
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| 236 | $res = []; |
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| 237 | foreach ($m1 as $i => $val) { |
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| 238 | $res[] = $val * $m2[$i]; |
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| 239 | } |
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| 240 | ||
| 241 | return $res; |
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| 242 | } |
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| 243 | ||
| 244 | /** |
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| 245 | * Element-wise <b>division</b> of two vectors of the same size |
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| @@ 252-260 (lines=9) @@ | ||
| 249 | * |
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| 250 | * @return array |
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| 251 | */ |
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| 252 | public static function div(array $m1, array $m2) |
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| 253 | { |
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| 254 | $res = []; |
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| 255 | foreach ($m1 as $i => $val) { |
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| 256 | $res[] = $val / $m2[$i]; |
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| 257 | } |
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| 258 | ||
| 259 | return $res; |
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| 260 | } |
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| 261 | ||
| 262 | /** |
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| 263 | * Element-wise <b>addition</b> of two vectors of the same size |
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| @@ 270-278 (lines=9) @@ | ||
| 267 | * |
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| 268 | * @return array |
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| 269 | */ |
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| 270 | public static function add(array $m1, array $m2, $mag = 1) |
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| 271 | { |
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| 272 | $res = []; |
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| 273 | foreach ($m1 as $i => $val) { |
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| 274 | $res[] = $val + $mag * $m2[$i]; |
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| 275 | } |
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| 276 | ||
| 277 | return $res; |
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| 278 | } |
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| 279 | ||
| 280 | /** |
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| 281 | * Element-wise <b>subtraction</b> of two vectors of the same size |
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| @@ 319-327 (lines=9) @@ | ||
| 316 | * |
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| 317 | * @return array |
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| 318 | */ |
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| 319 | public static function divs(array $m1, float $m2) |
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| 320 | { |
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| 321 | $res = []; |
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| 322 | foreach ($m1 as $val) { |
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| 323 | $res[] = $val / ($m2 + 1e-32); |
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| 324 | } |
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| 325 | ||
| 326 | return $res; |
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| 327 | } |
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| 328 | ||
| 329 | /** |
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| 330 | * Element-wise <b>addition</b> of a vector with a scalar |
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| @@ 337-345 (lines=9) @@ | ||
| 334 | * |
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| 335 | * @return array |
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| 336 | */ |
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| 337 | public static function adds(array $m1, float $m2, $mag = 1) |
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| 338 | { |
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| 339 | $res = []; |
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| 340 | foreach ($m1 as $val) { |
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| 341 | $res[] = $val + $mag * $m2; |
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| 342 | } |
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| 343 | ||
| 344 | return $res; |
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| 345 | } |
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| 346 | ||
| 347 | /** |
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| 348 | * Element-wise <b>subtraction</b> of a vector with a scalar |
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