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    * Latest "Cotangent" News * 


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GineersNow (press release) (blog)

New Trigonometric Functions Introduced
GineersNow (press release) (blog)
It seems like modern mathematicians need to take a break from all the sitting down in their offices proving theories and discovering things up to make the engineer life more difficult than already is. A 40-year-old professor named Brandon Lewis from ...

科学时报 (博客)

科学时报 (博客)
这是我们现在从小得到的启蒙知识,其印象当然是最深刻的。但是实际上,弓并不一定有圆弧,只要那一面的弯的即可,甲骨文、金文中的弓字与后来的篆字、正楷一样,一面都是弯曲的而不是圆弧形的。在传统武术中,所谓弓步也就 ...

Wired (blog)

Dec. 10, 1626: Measurement Man Meets the Measure of His Days
Wired (blog)
1626: Edmund Gunter dies. He invented tools for computation, navigation and surveying, and devised the trigonometry concepts of cosine and cotangent. Gunter was born sometime in 1581 in Hertfordshire, England. He graduated from Christ Church, Oxford ...


No way to stop adoption & acceptance of bitcoin - Max Keiser
... the Japanese financial authority has legitimized this. Cboe and CME are legitimizing this, and the hedge funds are jumping into this. You are going to get ETFs (Exchange-Traded Funds) as one of the things driving the stock market right now, and ...

and more »

Chicago Daily Herald

Many scholars contributed to inventing trigonometry
Chicago Daily Herald
Trigonometry uses ratios called sine, cosine, tangent, cotangent, secant, and cosecant to determine the length of unknown triangle sides or angle degrees within a triangle. Prior knowledge of algebra and geometry is needed before applying trigonometry ...

MAG The Weekly (press release) (blog)

MAG The Weekly (press release) (blog)
Al-Battani was the first to use the expressions sine and cosine, defining them as lengths, rather than the ratios we know them as today. The tangent was referred to by Al-Battani as the “extended shadow,” the shadow of a notional horizontal rod mounted ...

Here's Why The Martini Glass Got Replaced By The Coupe
The Martini Glass (or: Cocktail Glass) is a much reviled vessel. A cruel joke. An inverted cone bowl meant to hold inebriating alcohol that one will find difficult to hold even when sober. How many ounces of gin and vermouth have you spilled while ...

The Onion (satire)

Nation's Math Teachers Introduce 27 New Trig Functions
The Onion (satire)
WASHINGTON—Adding to the six basic functions that have for years made up the foundation of trigonometry, the nation's mathematics teachers reportedly introduced 27 new functions today that high schoolers will be expected to master. “While the core of ...

ZME Science

A history of how computers went from stealing your heart, to stealing your job
ZME Science
It calculates 4 values (sine, cosine, tangent, and cotangent) for every degree up to 45 degrees (because trigonometry is funny and these values repeat, sometimes going negative). So, it required 46 times 4 = 186 calculations to put together. Now, it's ...

and more »

TheaterJones Performing Arts News

Modern Marvels
TheaterJones Performing Arts News
As the next scene begins the dancers stop and face the audience on a diagonal to perform a series of robotic gestures in a cotangent. Photo: Robert Hart/TheaterJones. Choreographer Christopher Dolder. On the other side of the stage will be a couple of ...

     Internet Search Results 


Cotangent -- from Wolfram MathWorld
where is the tangent. The cotangent is implemented in the Wolfram Language as Cot[z]. The notations (Erdélyi et al. 1981, p. 7; Jeffrey 2000, p. 111) and (Gradshteyn ...

Trigonometric functions - Wikipedia
In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) are functions of an angle.

Mathwords: Cotangent
cotangent cot ctg. The trig function cotangent, written cot θ. cot θ equals or . For acute angles, cot θ can be found by the ...

Cotangent Calculator -- EndMemo
Cotangent Solver Calculator ... Note: Fill in one box to get results in the other box by clicking "Calculate" button.

2.7 GraphingTangent,Cotangent,Secant,and Cosecant Chapter 2. Graphing Trigonometric Functions 2.7 GraphingTangent,Cotangent,Secant,and Cosecant Learning Objectives • Apply transformations to the ...

Express Sine in Terms of Cotangent - dummies
Even though each trigonometry function is perfectly wonderful, being able to express each trig function in terms of one of the other five trig functions is frequently ...

Trigonometry Cotangent cot Equations Formulas Calculator
Trigonometry calculator solving for cotangent cot given angle in radians or degrees

Reciprocal - Wikipedia
In mathematics. Multiplicative inverse, in mathematics, the number 1/x, which multiplied by x gives the product 1, also known as a reciprocal; Reciprocal polynomial ...

Inverse Trigonometric Functions of Cotangent | Welcome to ...
Trigonometric function of Cotangent is positive in first & third quadrants; and negative in second and fourth quadrants. The principal branch for inverse ...

Constructing the Tangent and Cotangent Space | Power ...
This one confused me for a long time, so I figured I should write this down before I forgot again. Let $latex {M}&fg=000000$ be an abstract smooth manifold.




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