We present 75 new examples of complex quadratic fields that have 5-rank of their class groups $\geqslant3$. Only one of these fields has 5-rank of its class group >3 ...

Abstract: Zhang neural network (ZNN) has shown powerful abilities to solve a great variety of time-varying problems in the real domain. In this paper, to solve the time-varying complex quadratic ...

A mathematician at Carnegie Mellon University has developed an easier way to solve quadratic equations. The mathematician hopes this method will help students avoid memorizing obtuse formulas. His ...

The quadratic equation is a key topic in algebra. Many students find it challenging at first, but it describes many real-world situations.In physics, it shows the path of objects in motion. Engineers ...

Here’s what you’ll learn when you read this story: A mathematician at Carnegie Mellon University has developed an easier way to solve quadratic equations. The mathematician hopes this method will help ...