Solution The problem of this contest was to draw a tesseract: (Each color represents one dimension.) This image was created by 4d-3d-projection software (which is basically similar to 3d-2d-projection

Here you can keep your brain fit by solving math related problems and also earn SBI or sometimes other rewards by doing so. The problems usually contain a mathematical equation that in my opinion is fun

Solution The problem of this contest was a solution with basically just 4 trivial integer solutions, but it has a nice plot: Guessing the 4 trivial solutions isn't so hard: (0, 0), (0, -1), (1, 0), (1,

Here you can keep your brain fit by solving math related problems and also earn SBI by doing so. The problems usually contain a mathematical equation that in my opinion is fun to solve or has an interesting

Solution The problem of this contest was again a set of 2 equations: Apart from the obvious solution (0, 0, 0) there is also an infinite number of other solutions: 1: x² + y² = z² 2: z = x² + y → x² =

Here you can keep your brain fit by solving math related problems and also earn SBI by doing so. The problems usually contain a mathematical equation that in my opinion is fun to solve or has an interesting

Solution The problem of this contest was a bit harder and I'm not overly surprised that nobody completely solved every task. I'll give here a short summary how you could have solved them: This can be done

Here you can keep your brain fit by solving math related problems and also earn SBI by doing so. The problems usually contain a mathematical equation that in my opinion is fun to solve or has an interesting

Solution: The problem of the last contest was: It seems that this problem was/seemed so hard that we only had one answer, which was founded on a guess. So I'll show you here here how to get a result without

Here you can keep your brain fit by solving math related problems and also earn SBI by doing so. The problems usually contain a mathematical equation that in my opinion is fun to solve or has an interesting

Solution: The problem of the last contest was: Since @iampolite posted the complete way except from a few minor details, I don't see the need of repeating it all here instead of just showing his solution:

Here you can keep your brain fit by solving math related problems and also earn SBI by doing so. The problems usually contain a mathematical equation that in my opinion is fun to solve or has an interesting

Solution: The problem of the last contest was: This is basically a system of 2 equations: 1: x² + y = 1 2: x + y² = 1 From 1 we can derive: 3: y = 1-x² 3 in 2: x+(1-x²)² = 1 | -1 (x-1)+(1-x²)² = 0 → x₁

Here you can keep your brain fit by solving math related problems and also earn SBI by doing so. The problems usually contain a mathematical equation that in my opinion is fun to solve or has an interesting

Solution: The problem of the last contest was: To find the solutions for this equation you need to think of ways to make both sides equal. This can be done by: Setting y to zero and then find a way to

Here you can keep your brain fit by solving math related problems and also earn SBI by doing so. the problems usually CONtain a mathematical equation that in my opinion is fun to solve or has an interestinG

Solution: The problem of the last contest was: solution: f(x) = df(x)/dx |×dx ÷f(x) dx = 1/f(x) × df(x) |integrate x + C = ln(f(x)) |e^() f(x) = e^(x+C) solution: Assumption: g(x) = x²+h(x) → g''(x) =

Here you can keep your brain fit by solving math related problems and also earn SBI by doing so. The problems usually contain a mathematical equation that in my opinion is fun to solve or has an interesting

Solution: The problem of the last contest was: Find the nth prime and sum up all integers between and including 1 and the prime. Finding the nth prime is the hardest part of this. You could do this by

Here you can keep your brain fit by solving math related problems and also earn SBI by doing so. The problems usually contain a mathematical equation that in my opinion is fun to solve or has an interesting