Problem


Solve an ODE: equation for a 2D laminar jet

5 years ago | 2 | 4 solvers

Solved


rotate the vector 270 degrees?

5 years ago

Solved


rotate your name 90 degree

5 years ago

Solved


Reverse your name ?

5 years ago

Problem


Deduce the pattern behind the sequence

5 years ago | 4 | 28 solvers

Solved


Sum of series IX

5 years ago

Solved


Sum of series VIII

5 years ago

Solved


Convert Voltage to dB

5 years ago

Solved


Find power in dB

5 years ago

Problem


Round up to π

5 years ago | 4 | 27 solvers

Solved


Number construction II
Given a positive integer, n, return a, b, c and d, such that 1. n = a*2^b+c*3^d 2. a, b, c and d are all positive integers...

5 years ago

Solved


Number construction I
Given a positive integer, n, return a, b, c and d, such that 1. n = a*sqrt(b)+c*sqrt(d) 2. a, b, c and d are all positive ...

5 years ago

Solved


Expand 10^n to Powers of 4
Given an integer n, return the coefficients c = [c_n,c_n-1,...,c_0] Such that 10^n = c_n*4^(n) + c_n-1*4^(n-1...

5 years ago

Solved


Still more miles to go before I sleep
It's time for more odometer fun. Last problem, my car's odometer hit 56789. It's coming up on 111111 now, which (barring a maj...

5 years ago

Solved


Accessing values in a cell
You are given c, which is a 1xN cell array, and a and b, which are each two 1xM vectors. Your job is to give the bth value in t...

5 years ago

Solved


Inscribed Pentagon? 2
Your function will be provided with the five vertices of a pentagon (p) as well as the center point (cp) and radius (r) of a cir...

5 years ago

Solved


Area of triangle

5 years ago

Problem


Identify prime words

5 years ago | 2 | 20 solvers

Problem


Find pairs of primes with the same digit sum

5 years ago | 1 | 13 solvers

Problem


Solve an ODE: separable equations

5 years ago | 0 | 8 solvers

Solved


Input x, output y

5 years ago

Solved


Number Puzzle - 101

5 years ago

Solved


Rank of magic square (for beginners)
Compute the rank r of a magic square of order n WITHOUT rank and magic functions.

5 years ago

Solved


5th Time's a Charm
Write a function that will return the input value. However, your function must fail the first four times, only functioning prope...

5 years ago

Problem


Compute the nth term from the golden sieve

5 years ago | 1 | 21 solvers

Solved


Draw a '4' in a zero matrix!

5 years ago

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