Subtract the integers and subtract the fractions. When the fraction to be subtracted is bigger than the first fraction, change the mixed numbers to improper fractions first then do the subtraction.

Abstract: We consider energy-efficient multi-user hybrid downlink beamforming (BF) and power allocation under imperfect channel state information (CSI) and probabilistic outage constraints. In this ...

In this math tutorial, I will show you how to multiply complex numbers. Complex numbers come in the form of a + bi. Multiplying complex numbers carries some of the same properties as multiplying ...

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.

Have any lucky numbers? This may be your sign to play them next time you buy a lotto ticket. One Illinois mother did just that -- playing a March 13 Lucky Day Lotto game using her children's birthday ...

Abstract: Cybersecurity has increased in importance due to advances in connected vehicle technology. To evaluate the impact of cyberattacks in mixed and fully connected vehicle environments, a novel ...

The man played the same five numbers for years before winning big in late February Karla Marie Sanford has contributed to PEOPLE since 2026. Her work has previously appeared on the Los Angeles Times, ...