What Is Pi? By Elaine J. Hom Pi represents the ratio of the circumference of a circle to its diameter. Pi is an irrational number that never ends; the decimals go on forever and ever.

Adderall: Uses, Side Effects and Abuse By Elaine J. Hom Adderall is a prescription medication used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Four Weeks Pregnant: What to Expect By Elaine J. Hom The fourth week of pregnancy is usually when women discover they are pregnant. Now is the time to take a pregnancy test to know for sure.

Cyclobenzaprine (Flexeril): Dosage & Side Effects By Elaine J. Hom Cyclobenzaprine is a prescription medication that is used as a muscle relaxant. It is intended for short-term use, and should be used with other medications.

Three Weeks Pregnant: What to Expect By Elaine J. Hom In the third week of pregnancy, there won't be any major outward changes in a woman's body, but some pregnancy symptoms may have started.

First & Second Weeks of Pregnancy: What to Expect By Elaine J. Hom Pinpointing the exact date of conception is hard to do. Due dates are usually calculated to 40 weeks after the first day of the woman's last period.

Common Core Standards Explained By Elaine J. Hom The Common Core State Standards Initiative is an effort to prepare every student for college or the workforce.

What is STEM Education? By Elaine J. Hom STEM is a curriculum based on the idea of educating students in four specific disciplines — science, technology, engineering and mathematics — in an interdisciplinary and applied approach.

What Are Complex Numbers? By Elaine J. Hom Complex numbers are numbers that consist of two parts — a real number and an imaginary number.

What Are Imaginary Numbers? By Elaine J. Hom An imaginary number is a number that, when squared, has a negative result.

Real Numbers: Properties and Definition By Elaine J. Hom A real number is a value that represents a quantity along an infinite number line. They are, in fact, pretty much any number that you can think of.

What is Gabapentin? By Elaine J. Hom Gabapentin is an anticonvulsant used to control specific types of seizures.

What is Prednisone? By Elaine J. Hom Prednisone is a medication aimed at treating symptoms of inflammation, allergies and chronic conditions.

What is Mathematics? By Elaine J. Hom Mathematics is the science that deals with the logic of shape, quantity and arrangement.

What is the Golden Ratio? By Elaine J. Hom The golden ratio is a geometric relationship that is found in nature, art and architecture.

Alan Turing Biography: Computer Pioneer, Gay Icon By Elaine J. Hom Alan Turing, born June 23, 1912, broke the German Enigma code during World War II and developed a test for artificial intelligence.

What is a Prime Number? By Elaine J. Hom A prime number is an integer, or whole number, that can be divided evenly only by 1 and by itself.

Roman Numerals: Conversion, Meaning & Origins By Elaine J. Hom Roman numerals use seven basic symbols derived from the Latin alphabet.