Abbie Lund
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Solved
Is A the inverse of B?
Given a matrix A and a matrix B, is A the inverse of B? >>A=[2,4;3,5]; >>B=[-2.5,2;1.5,-1]; >>isInverse...
meer dan 4 jaar ago
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Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...
meer dan 4 jaar ago
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Sum my indices
Given inputs M and N (in that order), output an MxN matrix whose entries are equal to the sum of their indices. Example input...
meer dan 4 jaar ago
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So many choices
For inputs _n_ and _k_ (in that order), output the number of ways that k objects can be chosen from amongst n distinct objects. ...
meer dan 4 jaar ago
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What percentage?
Calculate the output c as the percentage of a on b for given a and b.
meer dan 4 jaar ago
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Matrix indexing with two vectors of indices
Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)).
meer dan 4 jaar ago
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Write a code that will follow the equation y = x * (x + x) * x.
If x = 5, y = 5 * (5+5) * 5 = 250
meer dan 4 jaar ago
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Matlab Basics II - Intervals
Write a function that takes an interval from a to b, and divides it into 5 parts example: a = 1, b = 2 output = 1 1.25 ...
meer dan 4 jaar ago
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Add two numbers
Calculate the sum of two numbers. Example input = [2 3] output = 5
meer dan 4 jaar ago
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Find the dimensions of a matrix
Just find the number of columns of the given matrix. Example x = [1 2 3 4 5 6] y = 2
meer dan 4 jaar ago
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Area of a triangle
A triangle is given with base *'b'* ,vertical hight *'h'* . then find it's area.
meer dan 4 jaar ago
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Element by element multiplication of two vectors
Given two input vectors, return the element-by-element product. Example A = [1 2 3] B = [7 3 1] The answer should be...
meer dan 4 jaar ago
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Find the area of the four walls
If length, breadth and height of the walls are given, find the area of the four walls.
meer dan 4 jaar ago
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Matlab Basics - Convert a row vector to a column vector
Write a script to convert a row (e.g. x = [1 2 3]) to a column (e.g. y = [1;2;3]), your script should be able to do this for any...
meer dan 4 jaar ago
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Transpose
Write a MATLAB script in order to convert a random length row vector (v) into a column vector.
meer dan 4 jaar ago
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Number of Circles in a Number
Given a number, return the number of closed 'circles' in the base 10 numerical representation. Note: the number 4 has no circ...
meer dan 4 jaar ago
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Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...
meer dan 4 jaar ago
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Matrix of almost all zeros, except for main diagonal
Write a program to input an integer n and build a n-by-n matrix with the numbers 1,2,...,n on the main diagonal and zeros elsewh...
meer dan 4 jaar ago
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Count ones
Write a program to count number of ones (1s) in an integer variable input. For example: Input x=2200112231 output y=3 I...
meer dan 4 jaar ago
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Mode
Find the mode of the vector Assumption: no vector is bimodal Example 1: input=[1 2 3 4 4]; output=4 Example 2: input=[7...
meer dan 4 jaar ago
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surface of a spherical planet
you just discovered its circumference, that is the input.
meer dan 4 jaar ago
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Find the hypotenuse
Given a and b (the two sides of a right-triangle), find c, the hypotenuse.
meer dan 4 jaar ago
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Balanced number
Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...
meer dan 4 jaar ago
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Basic arrays operations.
Apply element-by-element binary operation 'fun' to two arrays (A and B).
meer dan 4 jaar ago
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Sorted highest to lowest?
Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1
meer dan 4 jaar ago
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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0
meer dan 4 jaar ago
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Matlab Basics - Rounding III
Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000
meer dan 4 jaar ago
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Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...
meer dan 4 jaar ago