Return unique values without sorting
If the input vector A is [42 1 1],
the output value B must be the unique values [42 1]
The values of B are in the same order a...
Sums with Excluded Digits
Add all the integers from 1 to n in which the digit m does not appear. m will always be a single digit integer from 0 to 9.
no...
16日 前
解決済み
Who invented zero?
We know the importance zero in computer science, mathematics... but who invented zero?
Clue:
He was the first in the line ...
16日 前
解決済み
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:
Input...
16日 前
解決済み
Rescale Scores
Each column (except last) of matrix X contains students' scores in a course assignment or a test. The last column has a weighted...
16日 前
解決済み
Calculate Inner Product
Given two input matrices, x and y, check if their inner dimensions match.
If they match, create an output variable z which cont...
16日 前
解決済み
Find MPG of Lightest Cars
The file cars.mat contains a table named cars with variables Model, MPG, Horsepower, Weight, and Acceleration for several classi...
16日 前
解決済み
Find the Best Hotels
Given three input variables:
hotels - a list of hotel names
ratings - their ratings in a city
cutoff - the rating at which yo...
16日 前
解決済み
Crop an Image
A grayscale image is represented as a matrix in MATLAB. Each matrix element represents a pixel in the image. An element value re...
16日 前
解決済み
Plot Damped Sinusoid
Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|.
Mark the minimum...
16日 前
解決済み
Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as
y = A.ⅇ^(-λt)*cos(2πft)
where A, λ, and f are scalars and t is a vector.
...
16日 前
解決済み
Convert from Fahrenheit to Celsius
Given an input vector F containing temperature values in Fahrenheit, return an output vector C that contains the values in Celsi...
16日 前
解決済み
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 you n...
Pi Estimate 1
Estimate Pi as described in the following link:
<http://www.people.virginia.edu/~teh1m/cody/Pi_estimation1.pdf>
16日 前
解決済み
Calculate area of sector
A=function(r,seta)
r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...
16日 前
解決済み
Pizza!
Given a circular pizza with radius z and thickness a, return the pizza's volume. [ z is first input argument.]
Non-scored bonus...
16日 前
解決済み
Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1.
Hint: use increment.
16日 前
解決済み
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 ...
16日 前
解決済み
Create a vector
Create a vector from 0 to n by intervals of 2.
16日 前
解決済み
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 to use d...