https://central.sonatype.com/artifact/org.apache.commons/commons-math4-core/4.0-beta1/jar
Maven Central: org.apache.commons:commons-math4-core:4.0-beta1
Discover commons-math4-core in the org.apache.commons namespace. Explore metadata, contributors, the Maven POM file, and more.
maven centralapache commonscore
https://commons.apache.org/proper/commons-math/javadocs/api-4.0-beta1/org/apache/commons/math4/legacy/ode/nonstiff/package-tree.html
org.apache.commons.math4.legacy.ode.nonstiff Class Hierarchy (Apache Commons Math 4.0-beta1)