Estadística
1 Problema
5631 Soluciones
CLASIFICACIÓN
N/A
of 302.121
REPUTACIÓN
N/A
CONTRIBUCIONES
0 Preguntas
0 Respuestas
ACEPTACIÓN DE RESPUESTAS
0.00%
VOTOS RECIBIDOS
0
CLASIFICACIÓN
of 21.553
REPUTACIÓN
N/A
EVALUACIÓN MEDIA
0.00
CONTRIBUCIONES
0 Archivos
DESCARGAS
0
ALL TIME DESCARGAS
0
CLASIFICACIÓN
2
of 179.161
CONTRIBUCIONES
1 Problema
5631 Soluciones
PUNTUACIÓN
68.533
NÚMERO DE INSIGNIAS
181
CONTRIBUCIONES
0 Publicaciones
CONTRIBUCIONES
0 Público Canales
EVALUACIÓN MEDIA
CONTRIBUCIONES
0 Temas destacados
MEDIA DE ME GUSTA
Feeds
Resuelto
Function minimization - global minimum
Sequel of problem 45951 <https://www.mathworks.com/matlabcentral/cody/problems/45951> Can you do even better, within the r...
alrededor de 10 horas hace
Resuelto
Function minimization - beat fminsearch!
Sequel of problem 45948 <https://www.mathworks.com/matlabcentral/cody/problems/45948-function-minimization-beat-fminbnd> M...
alrededor de 10 horas hace
Resuelto
Function minimization - beat fminbnd!
Matlab's fminbnd function finds a minimizer of a function within an interval. If often gets stuck in local minima. Can you do...
alrededor de 11 horas hace
Resuelto
Bounding Circle
The Bounding Circle is the smallest enclosing circle to a given set of points on a plane <https://en.wikipedia.org/wiki/Smallest...
alrededor de 11 horas hace
Resuelto
Least Absolute Deviations (L1-norm) line fit - degree n
This is a generalization of Problem 45851 for degree n <https://www.mathworks.com/matlabcentral/cody/problems/45851-least-abs...
alrededor de 11 horas hace
Resuelto
Least Absolute Deviations (L1-norm) line fit - degree 1
Matlab's polyfit function is very handy to find least-squares regression. It minimizes the (L2-norm) of the estimation errors, b...
alrededor de 11 horas hace
Resuelto
What is the current time in Darwin, Australia?
Traders need to track exchange calendars and trading hours in detail, and account for time zone differences and daylight savings...
1 día hace
Resuelto
Convert vector datasets to plot with imagesc instead of scatter
For large datasets this allows much faster plotting. An irregular 2D spatial sampling is provided in x and y vectors with a d...
1 día hace
Resuelto
Magic Concentric Circles
Consider 4 magic circle circles around a single number in the sequence 1:n where the sum along the diameters is always equal, an...
1 día hace
Resuelto
Key Generation for Solitaire Cipher
The Solitaire Cipher by Bruce Schneier was introduced to Cody in two problems by Doug Hull: http://www.mathworks.com/matlabcent...
1 día hace
Resuelto
Borderline Connectivity
Compute the connected components of pixel borders. Suppose that h and v together describe a logical labeling of the borders b...
1 día hace
Resuelto
Approximate the inverse tangent by power series
Given values b (where abs(b)<=1) and n (polynomial order), write a function that calculates atan(b) by using power series.
1 día hace
Resuelto
"Bubblegum, Bubblegum, in a dish; How many pieces do you wish?"
The child's game "bubblegum, bubblegum, in a dish; how many pieces do you wish?" is a way of eliminating players until a single ...
2 días hace
Resuelto
Complete a 2nd order difference sequence
In Cody Problem 59791 ChrisR asks us to find the integer that completes a randomly sorted geometric sequence with one missing el...
2 días hace
Resuelto
increasing sequences
Given a string of digits, insert commas to create a sequence of strictly increasing numbers so as to minimize the magnitude of t...
2 días hace
Resuelto
Find the particular dividend
It is known that once you write the sequence 10101...101 long enough, the number will be finally divisible by any odd number if ...
2 días hace
Resuelto
factorial
There are really some cody problems related to factorial of n, e.g., 42667, 45184, 46054, and etc. It is interesting to ask why ...
2 días hace
Resuelto
three digits
Input three digits no larger than 4，say 1,2 and 3, write the possible largest number composed（concatenation and power） only by t...
2 días hace
Resuelto
prime consecutive sums
Create a number sequence of 1 to n, such that the sums of every two consecutive numbers are all primes. E.g. if n = 5, you may ...
2 días hace
Resuelto
how to concatenate matrices
What is the name of the function used to create a matrix C form two matrices A and B, using the syntax: C = [A B]; Outpu...
2 días hace
Resuelto
Persistence will not help you solve this problem.
Create a function without inputs that adds one to the output every time it is called. A different possibility of solving this ha...
2 días hace
Resuelto
Hilbert Scan Algorithm
As Zig-Zag and Horizontal ... we have also a < <Hilbert> <Scan> > as shown in this article <http://link.springer.com/chapter/10....
2 días hace
Resuelto
Stop a ZigZag scanning N*N Matrix at any diag you want
Suppose that we have a 2-D matrix and we try to obtain a 1-D array in zig-zag order, but not all values of our 2-D matrix e...
2 días hace
Resuelto
Adaptive ZigZag
Unfold a 2-D matrix to a 1-D array in Adaptive zig-zag order, e.g., for matrix [ 1 2 5 6; 3 4 7 8; 9 10 13 14; ...
2 días hace
Resuelto
Create a 3D rotation matrix from roll-pitch-yaw angles
Consider a robotics application where the world reference coordinate frame {W} and a robot manipulator arm with an attached tool...
3 días hace
Resuelto
Orientation of a 3D coordinate frame
The orientation of a body-fixed frame {B} with respect to the world frame {W} is described by an SO(3) rotation matrix. Compute...
3 días hace
Resuelto
Determine roll pitch yaw angles from a 3D rotation matrix
Consider an aerospace application where the world reference coordinate frame {W} and a body-fixed coordinate frame {B}. The ori...
3 días hace
Resuelto
Homogeneous lines and points in 2D: problem 1
In high school we learn the line equation y = mx + c where m is the gradient and c is the intercept. However this form is proble...
3 días hace
Resuelto
Upstairs!
The stair has n steps. Every times you can up one or two steps. Give all the different solutions to upstairs. For example n ...
3 días hace
Resuelto
Successive zeros (harder)
The problem is from Problem 45436, <https://www.mathworks.com/matlabcentral/cody/problems/45436-successive-zeros> Suppose n i...
3 días hace
