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# Abbie Lund

123 total contributions since 2019

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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...

etwa ein Jahr 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...

etwa ein Jahr ago

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Calculate volume of box
Calculate the volume of box,hiven its sides

etwa ein Jahr 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...

etwa ein Jahr 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. ...

etwa ein Jahr ago

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What percentage?
Calculate the output c as the percentage of a on b for given a and b.

etwa ein Jahr 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)).

etwa ein Jahr 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

etwa ein Jahr 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 ...

etwa ein Jahr ago

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Calculate the sum of two numbers. Example input = [2 3] output = 5

etwa ein Jahr 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

etwa ein Jahr ago

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Area of a triangle
A triangle is given with base *'b'* ,vertical hight *'h'* . then find it's area.

etwa ein Jahr 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...

etwa ein Jahr 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.

etwa ein Jahr 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...

etwa ein Jahr ago

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Transpose
Write a MATLAB script in order to convert a random length row vector (v) into a column vector.

etwa ein Jahr 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...

etwa ein Jahr 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 ...

etwa ein Jahr 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...

etwa ein Jahr ago

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Array of Ones
Create a 100 X 100 array of ones.

etwa ein Jahr 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...

etwa ein Jahr 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...

etwa ein Jahr ago

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surface of a spherical planet
you just discovered its circumference, that is the input.

etwa ein Jahr ago

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Find the hypotenuse
Given a and b (the two sides of a right-triangle), find c, the hypotenuse.

etwa ein Jahr 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...

etwa ein Jahr ago

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Basic arrays operations.
Apply element-by-element binary operation 'fun' to two arrays (A and B).

etwa ein Jahr 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

etwa ein Jahr ago

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

etwa ein Jahr 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

etwa ein Jahr 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...

etwa ein Jahr ago