What does cot mean? How to understand the meaning of cot?

Cot is the symbol of cotangent trigonometric function in trigonometric function, which was previously written as ctg. Cot coordinate system indicates: cotθ=x/y, cotθ=cosθ/sinθ in trigonometric function, and cotθ= 1/tanθ when θ=kπ, k∈Z (cotθ does not exist when θ = kπ, k∈Z). The adjacent side of angle a is the opposite side of angle a.

2. Career orientation training

COT is the abbreviation of Careeroriented Training, which is translated into career-oriented training in Chinese. The purpose of its training is to be employment-oriented, to train quasi-professional talents as the core, and to refine the training objectives of each semester. It aims at realizing students to become quasi-professionals in school through training methods, improving their career accomplishment and enhancing their employability.

3.cot: position report

COT is the abbreviation of Commitment of Traders, which belongs to the concept of financial field. It is literally translated as "position report" and is published regularly by the US Commodity Exchange Commission.

4. Cross-country travel

COT is a point-based cross-country league for all car enthusiasts, and it is also a diversified mass sports activity with social attributes. COT cross-country car race is a track cross-country obstacle course, which is a time trial in a closed venue.

There are artificial and natural obstacles such as expressway, lightning ditch, slope, bilateral bridge, serpentine array, V-shaped ditch, desert array, shell pit, steamed bread array, triple peak, wave array, deep water area, sparerib array, tire array and step road.