Current location - Training Enrollment Network - Mathematics courses - Polar coordinate function of MATLAB?
Polar coordinate function of MATLAB?
Polar function cannot set the range of axis with statements similar to axis. You can use other methods, and the principle is as follows:

H = polar coordinates ([0 2 * pi], [01]); The radius of% ranges from 0 to 1.

Hold on;

Polar coordinates (t, sin(2*t). *cos(2*t),'-r ');

Mathematical definition of function: given a non-empty number, that is, A, apply the corresponding rule F to A and record it as f(A) to get another number, that is, B=f(A). Then this relationship is called functional relationship, or function for short.

Let the domain of the function f(x) be D, and the number set X is contained in D. If the number K 1 exists, so that f(x)≤K 1 holds for any x∈X, the function f(x) is said to have an upper bound on x, and K 1 is called the function f. If there is a number K2 that makes f(x)≥K2 hold for any x∈X, then the function f(x) has a lower bound on X, and K2 is called a lower bound on X. If there is a positive number M, then | f (x) |

The necessary and sufficient condition for the function f(x) to be bounded on X is that it has both upper and lower bounds on X.