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[RESOLVED] Invert/Reverse Formula
I'm getting too old. I just simply cannot see the solution. Here is a formula I am using to determine reduction of a rectangle to ensure it is completely unclipped by a rounded corner outer rectangle....
View ArticleI would like to take the next step in movement and close in (ship movement)
I have the following program - It requires just a Form, PictureBox and Button. There are 2 questions that I have (I had help with something related to this previously, but these are newer questions)....
View ArticleFunction to distribute discrete values into weighted buckets
I'm posting this problem because I'm curious if there's an efficient algorithm that already exists to do it. I can certainly program something up, but if something exists that's already out there and...
View ArticleI would like to find all possible combinations of a 2D array.
I have a 8x8 array, where each slot can be on or off. It's basically a small monochrome image. I would like to create a loop, that allows me to list all possible combinations of pixels. This is 8x8 so...
View ArticleRatio Issue
Suppose that I have a pool of fish that have a variety of attributes. Of the total in the pool, some percentage have attribute G. All of the fish in the pool are tagged with either tag A (10%), tag B...
View ArticleMatrix Math VB.NET 2010
Hi All! I have a VB.NET form with a picture box on that reads CNC G code files and draws a tool path representation on a bitmap using the DrawLine method. The BM image is then transferred to the PB...
View ArticleSolver replacement/enhancement
All, I have a large non-linear equation that I have optimized using the solver in Excel. However, the amount of time it took was extensive. Does anyone have any other programs they have used for...
View ArticlePermutations and Combinations
Hi, I have a couple of basic math questions - regarding permutation and combination. I have an 8x8 Grid, where each cel can have a binary value; 0 or 1. If I want to find out how many variations there...
View ArticleMath Formula or equation
Hi, Im developping a manufacturing software, one of the requirements is to produce a report for required raw materials which in this scenario happend to be metal bars available in different length. The...
View ArticleTransference of spin from one object to another.
Hi Folks. I've been trying to find a solution to a physics problem for a few days now without success. I wonder if anyone here has either done this before or has a link to an example. I'm messing...
View Article[RESOLVED] Portions
I need another brain on this one to generalize a specific case, and I'm having some difficulty putting it into words. We mark fish in a variety of ways. Normally, there is one or two marks, but there...
View ArticleTwo Particle motion "approximation" questions
Not sure if anyone has interest in this type of problem. My Physics textbook (which I am self-studying) has a section for "Computer Exercises", where the intent is not that you work the problems out by...
View ArticleLinear Regression Projection from Known Point
Per title I want to project a regression line but use the previous data point NOT included in the dataset for calculating the regression line as an anchor such that the regression line starts at that...
View Article[RESOLVED] Linear Regression Projection from Known Point
Per title I want to project a regression line but use the previous data point NOT included in the dataset for calculating the regression line as an anchor such that the regression line starts at that...
View Articlehow calculate DDA on a grid?
the line have a start position: X = 10 Y = 10 angle =30 the grid have 37 by 37. the grid have 10 by 10 squares. knowing these how can i calculate the line points square by square?
View Article[RESOLVED] Contradiction in vector cross product
If you take note of the definition of vector cross product for example on: https://en.wikipedia.org/wiki/Cross_product you will learn that the cross product of vectors a and b is a vector (for example...
View Article[RESOLVED] Expression Calculator
Recently we had reason to use an infix calculator I wrote. During testing two questions came up and I' seeking other opinions. The first was concerning expressions like -9^2. What does that equal?...
View ArticleMatrix inversion
I've been tasked with coding a 2d square matrix inversion routine in c/c++. The side of the matrix is expected to be in the range >= 2 and <= 70. My knowledge of numerical algorithms is very...
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