The peak formula in Tongdaxin, how to use the PEAK function in Tongdaxin function

peak wave peak.

The first m zig steering wave peaks.

Usage: peak(k,n,m) represents the value of the first m peaks of zig(k,n) in a zig, m must be greater than or equal to 1.

The number of periods of the function refers to how many periods the position is established when using this function to judge conditions or other tasks.

For example, if the trading cycle on Wednesday is eligible, how many periods will be there between the trading cycle of the following Tuesday? It's not 7 days, it's 5 cycles;

Function definition: the distance from the peak of the previous m zig steering wave to the current. Function usage: peakbars(k,n,m) represents the number of cycles from the first m peaks of zig(k,n) to the current period, m must be greater than or equal to 1.

Extended Materials. Origin of function The word "function" used in Chinese mathematics books is a translation. When Li Shanlan, a mathematician in the Qing Dynasty, translated "function" into "function" when he translated the book "Algebra" (1859). In ancient China, the word "letter" and the word "contain" are common, and both have the meaning of "contain".

The definition given by Li Shanlan is: "Heaven is contained in the formula, which is a function of heaven." "In ancient China, the four characters heaven, earth, people, and things were used to represent four different unknowns or variables.

The implication of this definition is: "Whenever a formula contains the variable x, then the formula is called a function of x." So "function" means that the formula contains variables.

The exact definition of an equation we mean an equation with unknowns. However, in the early mathematical treatise "Nine Chapters of Arithmetic" in China, the term equation refers to a simultaneous one-dimensional equation containing multiple unknown quantities, that is, the so-called linear equation system.

Representation method. There are several ways to represent functions: analytical, listic, graphic, and linguistic. Analytic method The method of expressing the functional relationship between two variables using equations that contain mathematical relations is called analytic method.

The advantage of this method is that it can concisely, accurately and clearly represent the quantitative relationship between the function and the independent variable. The disadvantage is that it often has to go through more complex operations when finding the corresponding value, and some functional relationships in practical problems may not be expressed by expressions.

You can write a box index stock selection formula, ** price is greater than the top of the box, but this condition may be established continuously, is it as long as it is greater than it, or choose to be greater than the top of the box for the first time.

This is originally a stock selection formula, which means to select ** that meets the conditions var5 or vara. If you want to choose ** that satisfies both of these conditions, change the last sentence to the following: var5 and vara ; Thank you

【Top】:=peak(close,10,1)*;

bottom of the box]:=trough(close,10,1)*;

Middle line]:=([box top]+[box bottom]) 2;

cross(c,[midline]);

30),1);

Breakthrough:=dynainfo(7)>top and vol>ref(hhv(vol,30),1);

b:=barslast(cross(top,c)=0;

a:=barslast(Large-scale breakthrough);

xg:(Mass Breakthrough or A>0 )and B;