If the discriminant (b² - 4ac) is negative, the roots are complex numbers. Complex roots always come in conjugate pairs (a + bi and a - bi), where 'a' and 'b' are real numbers, and 'i' is the ...

Not according to a UC San Diego report. Instead, the college is finding that students struggle with even basic elementary math, despite grades that would normally suggest mastery of skills. Tutors’ ...

An algebraic equation contains one or more letters in it. Each letter in the equation is called a variable. A variable can change in value. We guess at different values for each letter until our ...

Simultaneous equations are two linear equations that can be solved using bar models. By remembering that the same letter will always have the same value we can work out the missing values. To solve ...

Quantum computers are computing systems that process information leveraging quantum mechanical effects. These computers rely ...

A man on death row in South Carolina is scheduled to be executed by firing squad. Stephen Bryant would be the second person to die by that method in the state this year.

Abstract: In this paper we describe a class of cryptographic guess-and-determine attacks which is based on the notion of a linearizing set. A linearizing set-based ...

Researchers used IBM’s quantum computers to create scalable quantum circuits that simulate matter under extreme conditions, offering new insight into fundamental forces and the origins of the universe ...

The focus is on the query: what multiplies to 10 and adds to 7.

Abstract: This communication describes a method of moments formulation to analyze the scattering from corrugated surfaces. The approach is based on the aperture integral equation. Such approach ...