Solved

Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

12 years ago

Solved

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 ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

12 years ago

Solved

Is my wife right?
Regardless of input, output the string 'yes'.

12 years ago

Solved

Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

12 years ago

Solved

Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

12 years ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

12 years ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

12 years ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

12 years ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

12 years ago

Submitted

Furuta (rotary) Pendulum
Equations of motion for a pendulum mounted on rotating base are compared to SimMechanics.

bug in matlab 2010b, trig functions (cosd, sind etc.)
Just tried it on the first machine again, and works fine. Maybe some delayed windows update? No idea.

13 years ago | 0

bug in matlab 2010b, trig functions (cosd, sind etc.)
Checked it out on another Windows 7 system, identical version, operating system and Java information as above, and cosd works f...

13 years ago | 0

bug in matlab 2010b, trig functions (cosd, sind etc.)
This happens to me to. Same built in function, operating system and Java. Took me a while to figure out why my results weren't l...

13 years ago | 0

Submitted

N largest values and locations in multidimensional array
Returns the N largest values for a multidimensional array, and their subscripts.

Submitted

SimMechanics pendulum used for control optimization
Pendulum imported via SimMechanics generates dynamics for optimal dampening solved by DIDO.

Submitted

Control optimization of a 4DOF arm using DIDO
4 DOF arm imported via SimMechanics generates dynamics for optimal pick-place control solved by DIDO