Community Profile # Doddy Kastanya

Last seen: 6 días ago Active since 2017

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

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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...

13 días 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...

7 meses 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_...

7 meses ago

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

7 meses ago

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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...

7 meses 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 meses ago

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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...

7 meses ago

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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.

7 meses ago

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

7 meses ago

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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

7 meses ago

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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...

7 meses ago

Solved

Number Puzzle - 119

7 meses ago

Problem

Number Puzzle - 119

7 meses ago | 0 | 9 solvers

Solved

Number Puzzle - 118

7 meses ago

Problem

Number Puzzle - 118

7 meses ago | 0 | 9 solvers

Solved

Draw a '4' in a zero matrix!

8 meses ago

Solved

Draw a '6' in a zero matrix!

8 meses ago

Solved

Draw a '9' in a zero matrix!

8 meses ago

Solved

Draw a '7' in a zero matrix!

8 meses ago

Solved

Draw a '8' in a zero matrix!

8 meses ago

Solved

Draw a '5' in a zero matrix!

8 meses ago

Solved

Draw a '3' in a zero matrix!

8 meses ago

Solved

Draw a '1' in a zero matrix!

8 meses ago

Solved

Sum of series VIII

8 meses ago

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Sum of series IX

8 meses 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)

8 meses ago

Solved

easy problem
Find the last element of the array

8 meses ago

Solved

Find the max element of the array
Find the max element of the array

8 meses ago

Solved

Calculate the average value of the elements in the array
Calculate the average value of the elements in the array

8 meses ago