`I don't think the whole spreadsheet is relevant here (Hope I am not wrong) but essentially I am working with some financial figures and need to work out a "Cumulative Cost". The spreadsheet is correct, but I don't understand the maths...`
`If I have a line, with the points x,y,endx and endy how can I detect if another point is on the line? A simple equation, or example functions in JavaScript or pseudocode will be most helpful.  EDIT: This is for a game I'm working on, I'm tryi...`
`Let's say I have the color rgba(255, 0, 0, 0.5) on a white background. The color that can bee seen is almost identical to rgba(255, 140, 140, 1) which is a solid color. I'm looking for an algorithm that converts a semi-transparent color (over...`
`Say you got a rectangle, width=10, height=20 and want to get the coordinates of every pixel in the perimeter. You could have done it with 4 for loops, but isn't there a better, neater way?  for(x=0; x<width; x++){     doSomethingWith(x,0) } fo...`
`What is the best way to check 4 in a row in connect 4?  I won't copy the code for the array but it is basically an array of length 42. Each array element holds the X, Y position for drawing and the color  var board_array = [{x:60, y:55, c:"Re...`
`I am having trouble converting this pseudocode statement to javascript i am new to javascript and i am confused on labling the string and i want to make sure i am on the right track  // Date validation function   Function Boolean isValidDateFormat(St...`
`I'm currently working on some private project on my spare time, and I've been stuck on a particular math problem.  I know that bin packing is a NP-HARD problem, but that's not exactly the problem I'm facing here.  What I must do is to...`
`I've recently seen a challenge picture on brillant.org's Instagram account:    The instructions: The robot takes 4 random steps (can't go diagonal).  In which area is it most likely to land?  Obviously there are 44 = 256 possible paths fo...`
`I am creating a CSS selector for homework. I have managed to extract and get single selectors - e.g. #_id, but I cannot work out how to get a result for nested ones such as : div#_id._class [NOTE: I cannot use any libraries to do this or querySelecto...`
`In this exercise, you will roll a pair of dice until the numbers add up to a given number. You can assume that the given number is 2, 3, 6, or 12. Using pseudocode, write an algorithm that returns the number of times the dice i...`