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Solved
Einsteinium-253 decay
Radioactive Einsteinium-253 has a half-life of 1,768,608 seconds. Given 1000mg of Einsteinium-253 at t=0 days, how much is lef...
2 hours ago
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Create formatted value string Cell array of a vector
This Challenge is to create a cell array that contains strings of vector components in a given format. c=vector2formattedstri...
2 hours ago
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Write a string
The answer should be a string that is the value: "I like apples!" (Ignore the quotation marks, just write what is inside the ...
2 hours ago
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Point on a line
Find the slope of the straight line between the points a and b. Then find y at x=20.
2 hours ago
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Count the Even Digits in a Number
Given a positive integer n, write a function that returns how many digits of n are even. Even digits are: 0, 2, 4, 6, 8
2 hours ago
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Invert a 3D rotation matrix
Given a 3D rotation matrix, belonging to the matrix group SO(3), compute its inverse without using the functions inv() or pinv()...
6 days ago
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Sum of even numbers in a vector
Write a function that takes a vector of numbers and returns the sum of all the even numbers in the vector.
6 days ago
Solved
Linearly Spaced Array
Create a linearly spaced array from 0 to x consisting of y elements.
6 days ago
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Minimum number of crossings in a complete graph
This problem is related to problem 58384. A complete graph may be drawn in different ways, such that the number of line crossin...
6 days ago
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Breaking up a chocolate bar
You've got a chocolate bar of size , and you want to break it up into bite-sized () pieces. How many steps are required to do th...
6 days ago
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X-intercepts of a quadratic.
Find the y value of the quadratic of the function at a point x.
6 days ago
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Repeat string n times
You will be provided a string (s = 'string1_') a starting point (num1 = 6) (always bigger than or equal to zero) and n (n = 3)...
13 days ago
Solved
Return the Square of a Number
Write a function that takes a single numeric input x and returns its square. That is, given x, your function should output x^2....
13 days ago
Solved
Square area to triangle area
Given the area, A, of a square with side length, c, if a right angle triangle has the same area A and the hypothenuse length 2c ...
13 days ago
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Solve the Sudoku Row
*Description* A simple yet tedious task occurs near the end of most Sudoku-solving algorithms, computerized or manual. The ta...
21 days ago
Solved
Sudoku square
We have a small Sudoku square, but one number is missing. x = [ 1 5 4 8 6 3 0 9 7 ] Make a function, wher...
21 days ago
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Generate N equally spaced intervals between -L and L
Given N and L, return a list of numbers (in ascending order) that divides the interval [-L L] into N equal-length segments. For...
21 days ago
Solved
exactly?
given two strings of numeric expressions such as '1-7/14' and '11/22+0.2^2', return 1 if they are numerically exactly equal othe...
22 days ago
Solved
Remove DC
Input x is the sampled signal vector, may have both AC and DC components. Output y should not contain any DC component. Examp...
22 days ago
Solved
Filter AC, pass DC
Input x is the sampled signal vector, may have both AC and DC components. Output vector y should not contain any AC component. ...
22 days ago
Solved
Find third Side of a right triangle given hypotenuse and a side. No * - or other functions allowed
Find the remaining side of a triangle given the hypotenuse and a side. However, the normal functions and symbols are not allowe...
1 month ago
