Refine select and scatter functions in LinearAlgebra

Author: yuichiis

.travis.yml

@@ -1,9 +1,17 @@
+os: linux
 language: php
+dist: focal
 
 php:
-    - '7.2'
-    - '7.3'
     - '7.4'
+    - '8.0'
+
+matrix:
+  include:
+    - php: '7.2'
+      dist: bionic
+    - php: '7.3'
+      dist: bionic
 
 before_install:
   - phpenv config-add tests/travis/php$TRAVIS_PHP_VERSION.ini

composer.json

@@ -9,7 +9,7 @@
         "interop-phpobjects/polite-math": ">=1.0.4"
     },
     "suggest": {
-        "ext-rindow_openblas": "0.2.3 strongly recommended for speed",
+        "ext-rindow_openblas": "0.2.4 strongly recommended for speed",
         "ext-rindow_opencl": "0.1.3 GPU/OpenCL support",
         "ext-rindow_clblast": "0.1.2 BLAS on GPU/OpenCL support",
         "rindow/math-plot": "for OpenCL tunning"