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Factorial Numbers

Factorial is multiplication of integers. So factorial of 6 is 720 = 1 * 2 * 3 * 4* 5 *6 Thus 6 factorial = factorial(720)....

7 months ago

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Sum the squares of numbers from 1 to n

For a given value of n return the sum of square of numbers from 1 to n. Example For n = 2 then sum of squares = 5 (1^2 + ...

7 months ago

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Divide by 4

Given the variable x as your input, divide it by 4 and put the result in y.

7 months ago

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Square the input

Given a scalar or vector x, return the square of each element. Example x = [7 2] answer = [49 4]

7 months ago

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What's size of TV?

Many people buy TV. Usually they ask about diagonal. But also important are width and height. Let's assume that all TV have rati...

7 months ago

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Frobenius Norm

Write your own version of Frobenius Norm without using the 'norm' function.

7 months ago

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Find the "ordinary" or Euclidean distance between A and Z

A, B and Z define three points in the 3D _Euclidean_ space of the form: A = [x1;y1;0]; B = [x2;y2;0]; Z = [x2;y2;z]; Find th...

7 months ago

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Free-time Equation

Given a 7-day week, an *_nc_* -number of *_tc_* -hour classes, *_ta_* -hours awake in a day, and *_tw_* -hours that you work in ...

7 months ago

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An Ohm's Law Calculator

*BACKGROUND / MOTIVATION:* Many important observations in math and science can be described by short, but powerful, equations...

7 months ago

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radius of a spherical planet

You just measured its surface area, that is the input.

7 months ago

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All your base are belong to us

Find the base _b_ logarithm of the input decimal number _x_. Express the output as a decimal number. The first argument is the n...

7 months ago

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Center of mass

Given a matrix M(m,n), where m is the number of vertices of the geometrical element and n is 2 or 3 (2D-plane figure or 3D-solid...

8 months ago

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Evaluating a polynomial

Given the following polynomial and the value for x, determine y. y = 3x^5 – x^3 + 8x – 3 Example x = 1 y = 3 - 1 +...

8 months ago

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Back to basics 8 - Matrix Diagonals

Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector of numbers, output a square array with the...

8 months ago

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0<=x<=pi?

Check whether the given angle is between zero and pi. Return logical true or false.

8 months ago

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Sort a list of complex numbers based on far they are from the origin.

Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

8 months ago

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Radiation Heat Transfer — View Factors (2)

View factors (aka configuration factors) are utilized in some radiation heat transfer models to estimate heat transfer rates bet...

8 months ago

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Return the 3n+1 sequence for n

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

8 months ago

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Calculating Ring Area

In two-dimensional space, a ring can be constructed by using two concentric circles. Determine the area of a ring which has r1 ...

8 months ago