phi
Prononciation : [faɪ]
Contexte : « mathematics »
(noun) Phi is a special number in math, also known as the golden ratio. It is about 1.618 and shows up a lot in nature, art, and design. It helps create things that look beautiful or balanced.
Exemple
Many artists use phi to make their paintings look more appealing because it creates a nice balance.
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Some designs don't follow the rule of phi, and they can look odd or not very pretty.
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Can you explain how phi is used in nature?
Contexte : « science »
(noun) Phi represents the symbol for a certain type of wave or function, especially in physics like for light or sound waves. It helps scientists describe how these waves behave.
Exemple
In physics, phi is often used to describe the angle of a wave's movement.
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Without understanding phi, students might struggle to grasp how waves work.
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What does phi measure when studying light waves?
Contexte : « culture »
(noun) Phi sometimes refers to a Greek letter which is the 21st letter of the Greek alphabet. It can symbolize many things in different cultures, like philosophy or physical sciences.
Exemple
In college, students learn about phi as part of the Greek alphabet.
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Phi is not used in everyday conversations, so many people may never hear about it.
Exemple
What does the Greek letter phi stand for in your studies?