Community Profile

# hang

##### Last seen: Today
1,029 total contributions since 2020

View details...

Contributions in
View by

Solved

Stacking vectors into a matrix
Given a 4x1 vector a, and a 2x2 matrix b, create a matrix M in which the first 2 rows are each identical to a and the last two r...

9 hours ago

Solved

Matrix convolution
A certain convolution step involves an elementwise multipication between two 3x3 matrices and taking the resulting sum of the el...

11 hours ago

Solved

Matrix Indexing
Given a matrix A and scalars r,c,i, find the product of two elements, with the first element located at row r and column c (doub...

11 hours ago

Solved

Generate the Matrix!
Given n, generate the following matrix: a = [ n n-1 n-2 ... 2 1; n-1 n-1 n-2 ... 2 1; n-2 n-2 n-2 ... 2 1;...

1 day ago

Solved

Power supply: 230V to 115V
The problem is simple: we have a wall outlet which supplies 230V and an apparatus that requires 115V. Software is always chea...

1 day ago

Solved

Sum of series IX

2 months ago

Solved

Sum of series VIII

2 months ago

Solved

Approximation of Pi
Pi (divided by 4) can be approximated by the following infinite series: pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... For a given numbe...

3 months ago

Solved

convert I

3 months ago

Solved

Return area of square
Side of square=input=a Area=output=b

3 months ago

Solved

eukleides triangle

4 months ago

Solved

Sum of series VII
What is the sum of the following sequence: Σ(km^k)/(k+m)! for k=1...n for different n and m?

4 months ago

Solved

area of a sphere

4 months ago

Solved

Area of a pentagon
Given the side of a regular pentagon and its apothem return the area of pentagon. Remember the area of pentagon is calculate ...

4 months ago

Solved

The sum of individual numbers...
Well this one is taking a number and then summing the individual parts till you reach a value of 1, 2, 3, 4, 5, 6, 7, 8, 9, or 0...

5 months ago

Solved

Simple Income Tax

5 months ago

Solved

Parallel vectors
Return true or false depending on whether 2 vectors are parallel or not. Vectors can be 2 or 3 dimensional. The origin is not c...

5 months ago

Solved

rectangle in circle
In the figure below, the rectangle at the corner measures a cm x b cm. What is the radius of the circle in cm? <<http://www....

5 months ago

Solved

Laws of motion 7

5 months ago

Solved

Find the efficiency

5 months ago

Solved

Where is she?
Given the numbers 12, 3, 6, 9 Tell where the girl is located. That is: Look to your 3 o'clock = look right Example ...

5 months ago

Solved

Volume of Cylindrical Shell

5 months ago

Solved

Find the Pattern 2

5 months ago

Solved

Previous Palindrome

5 months ago

Solved

Test if a number is numeric or not
Test if a number is numeric or not

5 months ago

Solved

Determine if a row vector has NaN
Determine if a row vector x has NaN

5 months ago

Solved

Find Logic 11

5 months ago