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Sum the main diagonal of a matrix
Given a square matrix, return the sum of its main diagonal elements. Example: diag_sum([1 2 3; 4 5 6; 7 8 9]) returns 15

22 days ago

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Determine if a number is prime
Given a positive integer n, return 1 if it is prime, 0 otherwise. Example: is_prime(7) returns 1, is_prime(4) returns 0

22 days ago

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Keep Only Even Numbers
Given a vector, return a new vector containing only the even numbers in their original order. Example: keep_evens([1 2 3 4 5 6])...

22 days ago

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Convert Celsius temperature to Fahrenheit
Given a temperature in Celsius, return the equivalent in Fahrenheit. Formula: F = C * 9/5 + 32Example: cel2fahr(100) returns 212...

22 days ago

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Remove Unique Elements
Given a list of integers, we want to keep only the non-unique elements in this list. To do this, we need to remove all the uniqu...

22 days ago

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Hofstadter Female and Male sequences
The Hofstadter Female (F) and Male (M) sequences are defined as follows Write a function to compute for a given n. See http...

22 days ago

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Hofstadter Q sequence
The Hofstadter Q sequence is defined as follows: The first elements of the sequence are 1, 1, 2, 3, 3, 4, 5, 5, 6, 6. Write ...

22 days ago

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Piston Mean Speed
Mean piston speed is a critical mechanical stress indicator. It sets limits on valve timing, bearing loads and material fatigue...

22 days ago

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Find the summation of factorial series
Factorial numbers are n! = 1*2*3....*n the series is 1!, 2!, 3!,........, n!

24 days 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

24 days ago

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Find out if the given number is a square of natural number.
For example , Input =4,output =1 Input=1,output=1 Input=0,output=0 Input=8,output=0

24 days ago

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If-Else
If a more than zero, b = true, else, b = false.

24 days ago

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Volumetric efficiency
Volumetric efficiency measures how well an engine breathes. The ratio of the actual air mass drawn in per cycle to the theoreti...

24 days ago

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Juros Simples
Faça uma função que calcule o montagem de um investimento com juros simples que receba como argumentos o capital inicial C, a ta...

24 days 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.

24 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.

24 days ago

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Instructions Following
Complete the function follow(s) which, for a given string (containing only the letters 'f', 'b', 'l', 'r'), calculates the final...

24 days ago

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Variance computation (★★★)
Given a vector x with several values, compute the variance, whose formula is given by: <<https://i.imgur.com/Wg95KBE.gif>> ...

24 days ago

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Matrix Rotation
Write a MATLAB function that rotates a given matrix by 90 degrees clockwise. The rotation should be performed in-place, without ...

24 days ago

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Basic Algebra II
You have the equation X^2 = n you should find the value of X. GOOD LUCK!

24 days ago

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Area of the yellow shaded region

24 days ago

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Addition
Add together the values of a and b.

24 days ago

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Engine torque and RPM
Torque and power are related through rotational speed. Knowing brake power and engine RPM, you can back-calculate the torque del...

24 days ago

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Classification metrics

24 days ago

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P(girl likes you | she smiled at you)
Compute the probability Given the input probabilities

24 days ago

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Basic Physics IV
Calculate the Work.

24 days ago

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Find the number of diagonals in a n sided polygon.
Find the number of diagonals in a n sided polygon.

24 days ago

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Turning radius of a vehicle
The turning radius represents the radius of the circular path followed by a vehicle. Given Wheelbase L and Steering angle δ, Co...

24 days ago

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OR
If a greater than zero or c less than 10, b = true, else, b = false.

24 days ago

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Basic Algebra III
Get the Cube Root of the number n.

24 days ago