Recent content by Charij

I'm actually writing a program that works out a, b and c, but then needs to work out x given y. I probably used the wrong terminology to describe something along the way ^^ The answer I first wrote was generated by getting the equation in the form of: y = (dx + e)^2 + f and then working out...

Great thanks! That in mind I've got: x = \frac{\sqrt{y - c - \frac{b^{2}}{4a}} - \frac{b}{2\sqrt{a}}}{\sqrt{a}}

Hi, I need to rearrange an equation: y = ax^2 + bx + c to the form of: x = ? I'm not entirely sure how to go about this and the examples I've found require the equation to be in a different form. Any tips or a point in the right direction would be great! Thanks in advance

Thanks Stephen, that was incredibly useful too! From your information, I plan to use the sum of the normal distributions using convolution. Then use Bayes' Theorem to calculate the probability. Thanks for your help! Charij

Thanks DrDu, After reading some wiki, you have put me on the right track! It'll take me a little time to work exactly what you're saying, but it seems to make some sense. Any chance you could link me some material on how to do this? Thanks again, Charij

Hi all, I've been working on a little side project, but I've hit a road block on the maths for this one. Basically if you imagine a sealed pack of 10 cards, there is a 20% chance that the pack contains one foil (more valuable) card. The mass distribution of the foil cards are (heavier and)...