提问
How can I remove parentheses in a symbolic expression and perform the operations for the coefficients?
I cannot use parentheses and / operations in my code because PHClab can't interpret them. So I need to remove them. How can I ma...
10 years 前 | 1 个回答 | 0
1
个回答已解决
Who knows the last digit of pi?
There is only one man who knows the last digit of pi, who is that man? Give the name of that man, who, by popular believe, can ...
10 years 前
已解决
Arrange vector in ascending order
Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];
10 years 前
已提交
Phase Plane Analysis
GUI for visualizing the direction field of two coupled first order nonlinear differential equations
11 years 前 | 1 次下载 |
已解决
Find the alphabetic word product
If the input string s is a word like 'hello', then the output word product p is a number based on the correspondence a=1, b=2, ....
11 years 前
已解决
Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...
11 years 前
已解决
Right and wrong
Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...
11 years 前
已解决
Factorize THIS, buddy
List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...
11 years 前
已解决
Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.
11 years 前
已解决
Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.
11 years 前
已解决
Back to basics 6 - Column Vector
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...
11 years 前
已解决
Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12
11 years 前
已解决
Tell me the slope
Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];
11 years 前
已解决
Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...
11 years 前
已解决
Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...
11 years 前
已解决
Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...
11 years 前
已解决
Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...
11 years 前
提问
ButtonDownFcn does not work
I am making a gui, but I can not make use of line 31: set(S.canvas, 'ButtonDownFcn',{@selectedtile,S}); If I am within t...
11 years 前 | 1 个回答 | 0
1
个回答提问
Double precision limit with norm
I wrote a Taylor series approach for calculating the natural logarithm of matrix A. When I compared my result with the built-in ...
11 years 前 | 1 个回答 | 0
1
个回答提问
MATLAB inverts colors in uicontrol objects
I wrote a GUI application but my problem is that when I save the figure programatically using the saveas command, colors of the ...
11 years 前 | 0 个回答 | 0
0
个回答已解决
Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...
11 years 前
提问
How to obtain a warning message?
I would like to extract the warning message, that a function throws. For example syms x solve(sin(1/sqrt(x))) generat...
11 years 前 | 1 个回答 | 0
1
个回答提问
Overwrite the function handle with a newer state?
I am currently learning from Matt Fig's 41 GUIs. What I do not understand is why he writes this line: set(ln,'buttondownfcn',{@a...
11 years 前 | 1 个回答 | 0
1
个回答提问
How to pass handle without using nested functions?
I want to make a simple GUI programatically. Here is what I have done so far. function main % Initialize figure and...
11 years 前 | 1 个回答 | 0
1
个回答已解决
Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...
12 years 前
已解决
De-dupe
Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...
12 years 前
已解决
Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...
12 years 前