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contour graph plotting and editting

最後に追加。 cmap = colormap; ax = gca; ax.Color = cmap(1, :);

contour graph plotting and editting

最後に追加。 cmap = colormap; ax = gca; ax.Color = cmap(1, :);

5 meses ago | 1

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Vector creation

Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

5 meses ago

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Doubling elements in a vector

Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

5 meses ago

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Flip the vector from right to left

Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

5 meses ago

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Whether the input is vector?

Given the input x, return 1 if x is vector or else 0.

5 meses ago

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Get the length of a given vector

Given a vector x, the output y should equal the length of x.

5 meses ago

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How to extract a certain row from a struct based on a specific column name?

たぶんこう data(data.DisplayName == 'vfzg_w', :)

How to extract a certain row from a struct based on a specific column name?

たぶんこう data(data.DisplayName == 'vfzg_w', :)

5 meses ago | 0

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imreadで画像を読み込むときの解像度

例えば、 A = imread('ngc6543a.jpg'); size(A) のようにすると、変数Aのサイズ（大きさ）が画像サイズより小さいサイズになってしまうということでしょうか？ もしくは表示だけの問題であれば、 image(A) では...

imreadで画像を読み込むときの解像度

例えば、 A = imread('ngc6543a.jpg'); size(A) のようにすると、変数Aのサイズ（大きさ）が画像サイズより小さいサイズになってしまうということでしょうか？ もしくは表示だけの問題であれば、 image(A) では...

5 meses ago | 0

Answered

How to fix a number equal to null in MATLAB

a = [ 1 2 3 -999.25 -999.25 4 5] a(a == -999.25) = 0

How to fix a number equal to null in MATLAB

a = [ 1 2 3 -999.25 -999.25 4 5] a(a == -999.25) = 0

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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.

5 meses ago

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Magic is simple (for beginners)

Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

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Make a random, non-repeating vector.

This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

5 meses ago

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Roll the Dice!

*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

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Number of 1s in a binary string

Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

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Return the first and last character of a string

Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

5 meses 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...

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Getting the indices from a vector

This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

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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...

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Check if number exists in vector

Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

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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...

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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 = ...

5 meses 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]; ...

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Reverse the vector

Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

5 meses 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...

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Length of the hypotenuse

Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<https://i.imgu...

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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...

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