Removing vibration!
There are [y] that vary with [x] but y including small useless vibration.
x=1:10
y=[1.71 2.03 3.28 4.05 5.10 6.82 7.69 8.3...
8 years 前
已解决
Delete useless part of data
When someone deals with big data. if the person delete useless part, calculation will be more faster than before deleting.
De...
8 years 前
已解决
Extract a part of matrix!
There is matrix A
A=[1 2 3;
4 5 6;
7 8 9]
Extract a part of matrix A from (2,2) to (3,3).
Result should...
Resort number using given index!
Resort matrix [a] using given index [b].
For example, if
a=[2 5 3 5];
b=[4 1 2 3];
, the result is [5 2 5 3]. (hint: y...
8 years 前
已解决
Change string to number
Change given string to number. (hint: there is already function)
Changing from ['1234'] to [1234] is one of example
A shooting competition
In a shooting competition, the target is a square of side L containing a circle of radius R<=L/2. A player scores one point if h...
8 years 前
已解决
Modified run-length companion vector
Given a vector x, return a vector that indicates the run length of any value in x. Each element in output vector shows how many ...
8 years 前
已解决
Find the outcast
All pairs have the same difference except for one. Output the index of the latter
Example:
input =[0 1;
1 0;
2 3;
4 5;]
ou...
8 years 前
已解决
Interpolate scattered data.
Most data was scattered, and there is no gird.
There are three data [c] in three different area [x,y].
x=[1 3 4];
y=[1 ...