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Swap the first and last columns (★★)
(copy of Prob 19) Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becom...

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Swap two numbers
Example Input: a = 10 b = 20 Output a = 20 b = 10

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Swap rows

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Swap

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find the value

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Y=X
Given an input variable x, output a variable y that is equal in value to x. Example: Input x = 1 Output y is 1 Inp...

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Back to basics 21 - Matrix replicating
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

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Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...

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Back to basics 26 - Keywords
Covering some basic topics I haven't seen elsewhere on Cody. Return a cell array of strings of all MATLAB keywords.

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Back to basics 10 - Max Float
Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive floating-point number MATLAB can han...

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multiply by three
Given the variable x as your input, multiply it by 3 and put the result equal to y. Examples: Input x = 2 Output y is ...

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Back to basics 15 - classes
Covering some basic topics I haven't seen elsewhere on Cody. Return the class of the input variable.

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Deleting an element in a matrix
For vector Grades=[98 56 78 34 100 88 87], delete the number 78 to get the following matrix Grades=[98 56 34 100 88 87] **re...

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convert matrix to single column
given any matrix, convert it to single column

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Find the mean of two vectors
Take two vectors, and output the mean of them (bonus if you don't use the in-built mean function)

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Vector indexing: lower than mean
Find all values in a vector lower than the mean of the vector

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Rankine to Celsius Converter
Given input R, degrees Rankine, convert into degrees Celsius.

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Degrees to Radian
Convert degrees to radians

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Radians to Degrees
Convert radians to degrees.

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Rotate matrix by -90 degrees
Rotate a Matrix by -90 degrees Example: X = 1 2 3 4 5 6 7 8 9 output = 7 4 ...

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vectors counting by 5
Create a vector with numbers from x_min to x_max in increments of 5.

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Resizing Matrices
Take an 4x3 matrix, and resize it to a 2x6 matrix

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Change matrix to vector
Vector is a matrix whose size is 1 x n or n x 1. Change matrix to vector. x = 4 3 5 1 ...

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Replace 0 indices in array with 1's
Take a incoming vector, and replace 0's with ones

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文字列の最初と最後の文字だけ抜き出しましょう。
文字列の最初と最後の文字をつなげて返すような関数を作成しましょう。もし文字が一つしかない場合、その文字は最初と最後の文字のため、関数はその文字を二回返すようにしておきましょう。例: stringfirstandlast('borin...

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

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対称で、n*2n のサイズの行列を作成しましょう
サイズが n*2n の "mirror" 行列（対称行列）を作成しましょう。例: n=2 の場合、以下のような出力を返します。 m = [ 1 2 2 1 1 2 2 1 ] n = 3 の場合、以下のよう...

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"mirror" matrix
Create n x 2n "mirror" matrix of this type: Examples For n = 2 m = [ 1 2 2 1 1 2 2 1 ] For n = 3 m = ...

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チェッカーボードを作ろう
整数 n が与えられた時、以下の様な1と0を含むn×nの行列を作成しましょう。a(1,1) は1にする必要があります。例：入力 n = 5 出力 a が [1 0 1 0 1 0 1 0 1 0 ...

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行列内の素数の平均をとろう
行列が与えられたときに、その行列内の素数の平均を計算する関数を作成しましょう。例: 入力の行列が in = [ 8 3 　　　　　　　　　　　5 9 ] のとき、出力が 4 あるいは (3+5)/2 のようになり...

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