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Doddy Kastanya


Last seen: 11 jours ago Active since 2017

I love math and physics. Being a nuclear engineer keeps this alive.

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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...

environ un mois ago

Solved


Rotate counterclockwise a matrix 90 deg with left-bottom element
Example: Input [ 1 2 3 4 5 6 ] Output [ 3 6 2 5 1 4 ]

6 mois ago

Solved


Easy Sequences 2: Trigonometric function with integral input and output
The function 'F', defined as: , will always return an integer if the input is a natural number (in radian...

6 mois ago

Solved


letter yes yes & letter no no
Split a string into two strings, wherein the first string has all alphabetic letters and the second string has all the remaining...

environ un an ago

Solved


the fly, the train, the second train, and their Zeno's paradox
*You have heard this one*: A train leaves station _A_ and travels with constant velocity _v1_. A second train leaves station _B_...

environ un an ago

Solved


Calculate Engine Power
Calculate Engine Power (P) in kW given the values of Torque(M) in Nm and Engine Speed(n) in rpm

environ un an ago

Solved


Electrical Diode Current Calculation
In engineering, there is not always a single equation that describes a phenomenon accurately enough to be applied in all instanc...

environ un an ago

Solved


An Ohm's Law Calculator
*BACKGROUND / MOTIVATION:* Many important observations in math and science can be described by short, but powerful, equations...

environ un an ago

Solved


Create an anti-identity matrix
Create an anti-identity matrix of given dimension. Examples n = 2 A = [0 1; 1 0] n = 3 A = [0 0 1; 0 1 0; 1 0 0...

environ un an ago

Solved


determine the sum of the squares
if x = 4, the solution will be: y = 1^2+2^2+3^2+4^2=1+4+9+16 = 30.

environ un an ago

Solved


sum all digits
input = 123456789, output = 1+2+3+4+5+6+7+8+9 = 45

environ un an ago

Solved


Convert from Base 10 to base 5
Convert the input number from base 10 into base 5: for example: if a(in base 10)= 5 then a(in base 5)= 10

environ un an ago

Solved


Tridiagonal matrix
Given vectors u and v, make a tri-diagonal symmetric matrix such that u is in the main diagonal and v is below and above diagona...

environ un an ago

Solved


Number Puzzle - 119

environ un an ago

Problem


Number Puzzle - 119

environ un an ago | 1 | 11 solvers

Solved


Number Puzzle - 118

environ un an ago

Problem


Number Puzzle - 118

environ un an ago | 1 | 11 solvers

Solved


Draw a '4' in a zero matrix!

environ un an ago

Solved


Draw a '6' in a zero matrix!

environ un an ago

Solved


Draw a '9' in a zero matrix!

environ un an ago

Solved


Draw a '7' in a zero matrix!

environ un an ago

Solved


Draw a '8' in a zero matrix!

environ un an ago

Solved


Draw a '5' in a zero matrix!

environ un an ago

Solved


Draw a '3' in a zero matrix!

environ un an ago

Solved


Draw a '1' in a zero matrix!

environ un an ago

Solved


Sum of series VIII

environ un an ago

Solved


Sum of series IX

environ un an ago

Solved


Sum of series
a(n) = n^2 - (n-1)^2 find the summation of the series upto n i.e. a(1)+a(2)+...+a(n)

environ un an ago

Solved


easy problem
Find the last element of the array

environ un an ago

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