What is virtual currency atan

1. Atan, short for atan, Chinese Name: Atlantis, issued by alliance? Group.

2.

Sqrt (number) calculates square root function and atan arctangent function

examples are as follows,

1. Create excel, insert sample data, two columns,

numeric function

4

5

12

16

18

3. Asin, ACOS and atan should be the functions (programs) in MATLAB, which are respectively recorded as (also the standard notation) arcsin, arccos and arctan in mathematics. They are the inverse functions (inverse functions) of sin, cos and tan, which are limited to [- pi / 2, PI / 2], [0, PI], (- pi / 2, PI / 2) Trigonometric function itself has no inverse function)

4. double atan(
double x
); // The arctangent of X is calculated

double atan2 (double y, double x)
/ / calculate the arctangent of Y / X

5.

Atan is an arctangent function, which is mainly used in programming. Arctan is the arctangent function of trigonometric function. Generally, the former is not used for a long time, and can be replaced if it appears

atan (nexpression)

specifies a numeric expression, and the atan() function returns the arctangent value of the numeric expression. Nexpression can be any value. The value range of atan() return value is from- π/ 2 to+ π/ 57079 to 1. 57079). The number of digits after the decimal point of the return value is determined by set decimals

extended data:

tangent function y = TaNx in the open interval (x ∈ (- π/ 2, π/ 2) The inverse function of y = arctanx or y = tan-1 x is called arctangent function. It means (- π/ 2, π/ 2) The only definite angle whose upper tangent is equal to X is Tan (arctan x) = X. the domain of arctan function is r, that is (- ∞, + ∞). Arctangent function is a kind of anti trigonometric function

Because the tangent function y = TaNx does not have one-to-one correspondence in the domain R, there is no inverse function. Note that we choose a monotone interval that is tangent. Because the tangent function is in the open interval (- π/ 2, π/ 2) Therefore, the arctangent function exists and is uniquely determined

after introcing the concept of multi valued function, it can be used in the whole domain of tangent function (x ∈ R, and X ≠ K) π+π/ 2, K ∈ z), then the arctangent function is multivalued, denoted as y = arctan x, the domain of definition is (- ∞, + ∞), and the domain of value is y ∈ R, y ≠ K π+π/ 2，k∈Z

Then, y = arctan x (x ∈ (- ∞, + ∞), y ∈ (- π/ 2, π/ 2) And y = arctan, x = K π+ arctan x (x∈R，y∈R，y≠k π+π/ 2, K ∈ z) is called the general value of arctangent function

6. Function name: atan
function: arctangent function (c + +)
usage: Double atan (double x)
Input: - ∞ ~ + ∞
(Note: limited by the range of formal parameters, the actual input range is double type, that is, the range of negative value is -1.7976e + 308 to -4.94065645841246544e-324, and the range of positive value is 4.94065645841246544e-324 to 1.797693e + 308)
output: - pi / 2 ~ pi / 2

when the input is negative, the output is negative..

7. One is arcsin, and the other is arctan. The former is the inverse trigonometric function of sin, and the latter is the inverse trigonometric function of tan

8. This is a mathematical function, which represents the value of Tan (- 1) (x), that is, the value of arctanx. The prototype of the function is
double
atan (double
x)

9. The atan function is to find the arctangent of a number. In radians, the size is between - pi / 2 and PI / 2
I hope I can help you.

10. PHP function