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Showing posts with the label Math

Is It Possible To Get A Natural Log Of A Big-integer Instance?

I am using big-integer for JavaScript. var bigInt = require('big-integer') I have a bigInt… Read more Is It Possible To Get A Natural Log Of A Big-integer Instance?

How To Do This Coordinate System Operation More Efficiently?

I'm making a 3D game, where the player's back should always be facing the camera and he sho… Read more How To Do This Coordinate System Operation More Efficiently?

Find A Point On A Line Closest To A Third Point Javascript

I'm trying to find a point on a line closest to a third point off of the line. The points are l… Read more Find A Point On A Line Closest To A Third Point Javascript

How To Get This Prng To Generate Numbers Within The Range?

I found this which I made into this below, for 8 and 16 bit numbers in JavaScript: However, while … Read more How To Get This Prng To Generate Numbers Within The Range?

Javascript: How To Calculate Offsets For A Boundary Of A Moving Sprite When It's Speed Is Relative To Time?

I am current running into a bit of a math conundrum that has stumped me for days. I am building a J… Read more Javascript: How To Calculate Offsets For A Boundary Of A Moving Sprite When It's Speed Is Relative To Time?

Why Does Javascript Math.log(1.001) Return The Wrong Value?

JavaScript returns .0009995003330834232. Every other way of calculating returns 0.000434077479319. … Read more Why Does Javascript Math.log(1.001) Return The Wrong Value?

Create Equilateral Triangle In The Middle Of Canvas?

I want to draw an equilateral triangle in the middle of canvas. I tried this: ctx.moveTo(canvas.wid… Read more Create Equilateral Triangle In The Middle Of Canvas?

Create A Bezier Curve From Arc In Javascript

I want to create a quadratic bezier curve from the two end points on a arc (x1, y1, x2, y2) and eit… Read more Create A Bezier Curve From Arc In Javascript

Random Hex Color

This is the javascript to generate a random hex color: '#'+(Math.random()*0xFFFFFF Solutio… Read more Random Hex Color

Cumulative Distribution Function In Javascript

I am searching for a way to calculate the Cumulative distribution function in Javascript. Are there… Read more Cumulative Distribution Function In Javascript

Ranking Algorithm Base On Multiple Condition/factor

I'm writing a mini game but stuck in the end. It's a simple quiz where it rank user by the … Read more Ranking Algorithm Base On Multiple Condition/factor

Algorithm To Merge Two Arrays Into An Array Of All Possible Combinations

Example given in JavaScript: Suppose we have two arrays [0,0,0] and [1,1,1]. What's the algorit… Read more Algorithm To Merge Two Arrays Into An Array Of All Possible Combinations

Generate Coordinates Given Distance, Angle From A Center

I have a given center in the map [x1,y1]. From that center I am drawing a circle with a 1 mile radi… Read more Generate Coordinates Given Distance, Angle From A Center

Calculate Fraction As Value Relative To Other Fractions

Apologies that I can't show code I'm just not sure how to go about this. I would like to ac… Read more Calculate Fraction As Value Relative To Other Fractions

How To Improve Efficiency Of Algorithm Which Generates Next Lexicographic Permutation?

It must be noted here that I performed the mathematics by hand on paper to derive the foregoing pro… Read more How To Improve Efficiency Of Algorithm Which Generates Next Lexicographic Permutation?

What's A Good Mathematical Sets Implementation In Javascript?

Where is a good mathematical sets implementation for JavaScript? It should include efficient implem… Read more What's A Good Mathematical Sets Implementation In Javascript?

Formula To Determine If An Infinite Line And A Line Segment Intersect?

Given a point on a line and that line's slope how would one determine if the line, extending in… Read more Formula To Determine If An Infinite Line And A Line Segment Intersect?

Increment Float In React, String Conversion, State Representation

Here is the critical logic of my codebase: addLogicToEquation(newLogic) { let equation = thi… Read more Increment Float In React, String Conversion, State Representation

How Do You Increase Element Width As You Decrease The Window Size?

I'm coding a website to fit both desktop and mobile, and of course the initial thought is to us… Read more How Do You Increase Element Width As You Decrease The Window Size?

How To Make Object Rotate With Drag, How To Get A Rotate Point Around The Origin Use Sin Or Cos?

I've been searching long time, but can't find a better way solve my problem, make div dragg… Read more How To Make Object Rotate With Drag, How To Get A Rotate Point Around The Origin Use Sin Or Cos?