complicate

• complicate [com- + plicare 'to fold']
• explicate ['to unfold', from plicare 'to fold'] explain an idea in detail
• implicate ['to twist together, make complicated'] show that sb is involved in sth, esp a crime
• complex [Origin: complexus, 过去分词 of complecti 'to include (many different things)', from com- + plectere 'to weave, braid']
  • braid - 编成辫子 =plait
• duplex [duo 'two' + plex 'fold'] 有两部分的; 毗联式建筑
• duplicate ['to double', from duplex] =replicate
• triplicate ['to triple', from triplex] 一式三份。quadruplicate: 一式四份

What is the difference between Complicated and Complex?

• Complex and complicated are near synonyms and are adjectives that are used almost interchangeably.
• However, complex is used more in science and math problems while complicated is used more in social relationships
• Medical conditions are also termed complicated and their symptoms as complications
• Complicated means something that is intricate and hard to understand
• Complex is something that has many parts that are interrelated though it may or may not be difficult to understand

---

A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i represents the “imaginary unit”, satisfying the equation

i² = -1

The 16th-century Italian mathematician Gerolamo Cardano is credited with introducing complex numbers in his attempts to find solutions to cubic equations. In algebra, a cubic equation in one variable is an equation of the form

ax³+bx²+cx+d=0

in which a is nonzero.

The complex number system is a field [域]. A field is a set [集合] on which addition, subtraction, multiplication, and division are defined and behave as the corresponding operations on rational and real numbers do. A field is thus a fundamental algebraic structure which is widely used in algebra, number theory, and many other areas of mathematics. 群/环/域

数以complex名，可见确实复杂。欧拉公式：e^πi + 1 = 0

---

https://cn.bing.com/search?q=life+is+complicated+quotes

Mike's eyes narrowed shrewdly. "Don't kid yourself, Bella. The guy's head over heels [completely] for you." "I know," I sighed. "Life is complicated." "And girls are cruel," Mike said under his breath." ~ Stephenie Meyer 《暮光之城》作者

"It's scary being loved. Because life is complicated and all too often it throws you off balance by sending you the right person at the wrong time." ~ Guillaume Musso, 作家

Making the simple complicated is commonplace; making the complicated simple, awesomely simple, that's creativity. ~ Charles Mingus, 音乐家

It's complicated. ~ Ross Gellar, 古生物学家

六级/考研单词: complicate, fold, twist, weave, duplicate, triple, differentiate, synonym, adjective, mathematics, symptom, intricate, equate, algebra, invariable, ax, subtract, correspond, rational, thereby, shrewd, heel, sigh, scare, seldom, commonplace