Calculus for beginners, Episode 1

Ordinary daily life in the Department of Mathematics at Tsinghua University

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The incredible Buffon needle throw: throwing a needle randomly on paper can actually calculate "π"!

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How to draw a circle?

273 Views

[Made in heaven] Review is about to speed up

23 Views

Shanxi #College Student Exposes Hidden Spy Cam in Male Dorm Toilet# School: Security Office Is Inves

181 Views

Girl Binge-Watches a Short Drama and Runs Into Her College Classmate Playing the Male Lead—Totally E

53 Views

(Photo taken in 2007) A girl who smiles all the time on a BMW and a bicycle

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Admissions Scandal — Full Video of a Male Student from Beijing Vocational College of Politics and La

243 Views

Do you know me? I know you

160 Views

"I've Watched Interstellar"

38 Views

Tinker Bell's math learning CD clip

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Is your heart beating okay? Is your heart beating? My heart is beating and my passion is burning.

30 Views

Gu Xun’er: While I was gone, Xiao Yan actually had a kid—time to crush them good!

706 Views

Complaints about Advanced mathematics

230 Views

【worth it】School Million Lighting Technician Series! Special thanks to the photographer, lighting te

60 Views

Rebirth: I Listened to the Genealogy of Chinese Family Relationships at an American University

7.2K Views

The Village Beauty

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2+2=4 2000+2000=? Do you understand?

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Just started my new job today—what do you think of my work outfit?

204 Views

When I first entered college, I was assigned to a dormitory with my muscular roommate

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