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Bullseye Matrix

Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

6 months ago

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Summing digits

Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

6 months ago

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Interpolator

You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

6 months ago

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Need to read data from text format to matlab

I was able to reproduce your error as below: A = str2num('') % An empty character vector; Result: A = [] B = str2num([]) % An ...

Need to read data from text format to matlab

I was able to reproduce your error as below: A = str2num('') % An empty character vector; Result: A = [] B = str2num([]) % An ...

6 months ago | 0

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Pangrams!

A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

6 months ago

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Remove any row in which a NaN appears

Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

6 months ago

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Who Has the Most Change?

You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

6 months ago

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Finding the shortest path

After you have found the minimum value of the function, you can simply replot over the same line in a different color. The most ...

Finding the shortest path

After you have found the minimum value of the function, you can simply replot over the same line in a different color. The most ...

6 months ago | 0

Solved

Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

6 months ago

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Calculate Amount of Cake Frosting

Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

6 months ago

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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...

6 months ago

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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...

6 months ago

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Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

6 months ago

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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...

6 months ago

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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 ...

6 months ago

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Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

6 months ago

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Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; ...

6 months ago

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Triangle Numbers

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

6 months ago

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Determine if input is odd

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

6 months ago

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Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

6 months ago

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it says the right side does not equal to the left i dont know what should i do can anyone help me pls?

If the error says "Unable to perform assignment because the left and right sides have a different number of elements" the issue ...

it says the right side does not equal to the left i dont know what should i do can anyone help me pls?

If the error says "Unable to perform assignment because the left and right sides have a different number of elements" the issue ...

6 months ago | 0

Answered

how to get matlab to disply zero as the last value

a,b, and h are 18x1 so you'll only get 18x1 unless you add a zero at the end. You can do that in a few ways: x(19)=0; %or x(...

how to get matlab to disply zero as the last value

a,b, and h are 18x1 so you'll only get 18x1 unless you add a zero at the end. You can do that in a few ways: x(19)=0; %or x(...

6 months ago | 1

| accepted

Answered

How can I plot coordinates up on a map?

You can use the hold command to plot two things to the same figure. imshow('map_image') hold on plot(points_of_interest_x,poi...

How can I plot coordinates up on a map?

You can use the hold command to plot two things to the same figure. imshow('map_image') hold on plot(points_of_interest_x,poi...

6 months ago | 1

Answered

Saving image in correct format or how do I save only image-part of the figure?

This answer by Adam Danz shows how you can remove the borders and interactive parts of the figure window. After you've done so,...

Saving image in correct format or how do I save only image-part of the figure?

This answer by Adam Danz shows how you can remove the borders and interactive parts of the figure window. After you've done so,...

6 months ago | 1

Answered

Index exceeds the number of array elements(3)

The error Index exceeds the number of array elements (3). This means that you are asking for an element beyond the boundaries ...

Index exceeds the number of array elements(3)

The error Index exceeds the number of array elements (3). This means that you are asking for an element beyond the boundaries ...

6 months ago | 0

Answered

How to supply perticular varargin entries of the 'main_function(varargin)' to a 'subfunction(varargin_new)'?

Solution When you call the original function, you do so with original_function(arg1,arg2,arg3,arg4,..) Using varargin lets ...

How to supply perticular varargin entries of the 'main_function(varargin)' to a 'subfunction(varargin_new)'?

Solution When you call the original function, you do so with original_function(arg1,arg2,arg3,arg4,..) Using varargin lets ...

6 months ago | 1

| accepted

Answered

How to import a column from an Excel file?

Since it seems that you just need to get rid of the NaN values, try using logical indexing with the isnan command. p_time = p_t...

How to import a column from an Excel file?

Since it seems that you just need to get rid of the NaN values, try using logical indexing with the isnan command. p_time = p_t...

6 months ago | 1

| accepted

Solved

Fibonacci sequence

Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

1 year ago