php-ai /
php-ml
| @@ 232-240 (lines=9) @@ | ||
| 229 | * |
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| 230 | * @return array |
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| 231 | */ |
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| 232 | public static function mul(array $m1, array $m2) |
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| 233 | { |
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| 234 | $res = []; |
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| 235 | foreach ($m1 as $i => $val) { |
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| 236 | $res[] = $val * $m2[$i]; |
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| 237 | } |
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| 238 | ||
| 239 | return $res; |
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| 240 | } |
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| 241 | ||
| 242 | /** |
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| 243 | * Element-wise <b>division</b> of two vectors of the same size |
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| @@ 250-258 (lines=9) @@ | ||
| 247 | * |
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| 248 | * @return array |
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| 249 | */ |
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| 250 | public static function div(array $m1, array $m2) |
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| 251 | { |
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| 252 | $res = []; |
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| 253 | foreach ($m1 as $i => $val) { |
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| 254 | $res[] = $val / $m2[$i]; |
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| 255 | } |
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| 256 | ||
| 257 | return $res; |
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| 258 | } |
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| 259 | ||
| 260 | /** |
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| 261 | * Element-wise <b>addition</b> of two vectors of the same size |
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| @@ 268-276 (lines=9) @@ | ||
| 265 | * |
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| 266 | * @return array |
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| 267 | */ |
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| 268 | public static function add(array $m1, array $m2, $mag = 1) |
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| 269 | { |
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| 270 | $res = []; |
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| 271 | foreach ($m1 as $i => $val) { |
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| 272 | $res[] = $val + $mag * $m2[$i]; |
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| 273 | } |
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| 274 | ||
| 275 | return $res; |
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| 276 | } |
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| 277 | ||
| 278 | /** |
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| 279 | * Element-wise <b>subtraction</b> of two vectors of the same size |
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| @@ 317-325 (lines=9) @@ | ||
| 314 | * |
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| 315 | * @return array |
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| 316 | */ |
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| 317 | public static function divs(array $m1, float $m2) |
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| 318 | { |
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| 319 | $res = []; |
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| 320 | foreach ($m1 as $val) { |
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| 321 | $res[] = $val / ($m2 + 1e-32); |
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| 322 | } |
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| 323 | ||
| 324 | return $res; |
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| 325 | } |
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| 326 | ||
| 327 | /** |
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| 328 | * Element-wise <b>addition</b> of a vector with a scalar |
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| @@ 335-343 (lines=9) @@ | ||
| 332 | * |
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| 333 | * @return array |
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| 334 | */ |
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| 335 | public static function adds(array $m1, float $m2, $mag = 1) |
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| 336 | { |
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| 337 | $res = []; |
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| 338 | foreach ($m1 as $val) { |
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| 339 | $res[] = $val + $mag * $m2; |
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| 340 | } |
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| 341 | ||
| 342 | return $res; |
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| 343 | } |
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| 344 | ||
| 345 | /** |
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| 346 | * Element-wise <b>subtraction</b> of a vector with a scalar |
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