In this Rhino tutorial we cover how to make an exponential curve with with Explicit History (Grasshopper). This is an intro to using scalar parameters in Rhino to driving geometry with math. Also covered, is how to use the range components in Rhino to make collections of objects, in this case points. By learning the simplest commands in Rhino, you can start to build on them and combine them for more complex results. This tutorial is best viewed at full screen. Make an exponential curve with G...
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to get started with a TI-83 graphing calculator. This will show you how to turn your calculator on and off as well as how to darken or lighten your screen. Get started with a TI-83 graphing calculator.
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to clear a list with a TI-83 graphing calculator.
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to create histograms with a TI-83 graphing calculator.
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to create scatter plots with a TI-83 graphing calculator.
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to calculate deviation with a TI-83 graphing calculator.
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to use the central limit with a TI-83 graphing calculator.
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to find intervals with a TI-83 graphing calculator.
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to proportion population with a TI-83 graphing calculator.
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to determine a regression equation with a TI-83 graphic calculator. That's not all...
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to perform a chi-square test on a TI-83 graphing calculator.
It was brought up a while back in a Community Call to Arms that *math* is handy for encryption (and let's face it, everything) so let us go over things you just have to know. "In its simplest meaning in mathematics and logic, an operation is an action or procedure which produces a new value from one or more input values."[source]
It's once again Monday, which means it's time to highlight some of the most recent community submissions posted to the Math Craft corkboard. Since two of these posts were on polyhedral versions of M.C. Escher's tessellations, I thought we'd take a look at building a simple tessellated cube based off of imitations of his imagery.
WonderHowTo is made up niche communities called Worlds. If you've yet to join one (or create your own), get a taste below of what's going on in the community. Check in every Wednesday for a roundup of new activities and projects.
I finally got around to making the pentakis dodecahedron from the instructions in Math Craft admin Cory Poole's blog post. It's not tightened/straightened up yet because I just noticed that I have two black and white and two blue and green compound modules next to each other (but no purple and pink modules next to each other—to the math experts, this is a parity thing, as you can only have even numbers of modules paired up next to each other).
WonderHowTo is made up niche communities called Worlds. If you've yet to join one (or create your own), get a taste below of what's going on in the community. Check in every Wednesday for a roundup of new activities and projects.
Last week Math Craft admin Cory Poole demonstrated how to make three of the platonic solids from Sonobe units: the cube, the octahedron, and the icosohedron; but where was the dodecahedron? I was pushed to find out how to make a sonobe dodecahedron from this beautiful picture (below) that Rachel Mansur posted on the corkboard.
Since today (11/11/11) is the last 6 digit binary date this century, I thought we should look at some kinetic binary calculators.
Reuben Margolin builds large scale kinetic sculptures based off of mechanical waves. Some of his sculptures contain hundreds of pulleys all working in harmony with each other to create sinusoidal waves and their resulting interference patterns. He designs them all on paper and does all of the complicated trigonometric calculations by hand. Everything is mechanical; there are no electronic controllers.
Richard Sweeney is an incredible artist whose body of work consists mainly of sculptures made from paper. His art is often related to origami, and much of his work is related to geometrical forms. I personally really love his modular forms in paper. Many of them are based off of the platonic solids, which have been discussed in previous posts this week. Below are a small number of his sculptures, which are very geometric in nature.
Portal is game design milestone. Originally only available bundled in with larger cousins Half-Life 2 and Team Fortress 2 in The Orange Box, its creators, Valve Software, changed what first person gameplay could be. It's been a stand alone product for much of the four years since its release, but never an expensive one, usually available for $5 on Steam (also created by Valve). If that barrier to entry was too high for you, or you just never got around to trying it, there are no more excuses....
In this video, we learn how to do long division in your head. Start off by trying to do a division problem in your head that divides evenly. This will help you start to get used to doing division in your head. If you come across a problem where you have to carry a number, don't forget to remember it. If you can see a pattern in any division problem, you will be able to solve any problem that you come across. This can be used for small division problems as well as extremely long division probl...
This video demonstrates how to multiply and divide fractions in algebra. From the people who brought you the Dummies instructional book series, brings you the same non-intimidating guides in video form. Watch this video tutorial to learn how to multiply and divide fractions in algebra, For Dummies.
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to do binomial probabilities with a TI-83 graphing calculator.
Evidently, when you are thinking about a problem, you use up glucose. This can be seen by monitoring blood glucose as people work on math problems and the like.
Good stress is also known as Eustress (Short-term stress). Is the stress that keeps you alive. The motivation you have to meet a goal. Eustress is also positive stress for example, studding to pass a math test.
I was browsing Reddit.com yesterday and noticed this post. User guyanonymous (yes I am really crediting him regardless of his name!) had posted up this string-art picture which has parabolic curves created from straight lines and gave me permission to post it up here on the corkboard. I love the repeating "flower" pattern.
I've already posted a brief roundup of interesting models folded by Michal Kosmulski, expert orgami-ist and IT director at NetSprint. However, I didn't include my favorite model, because I felt it deserved its own post. Kosmulski folded an elaborate and large Sierpinski tetrahedron, which he deems "level 3" in difficulty. (Translation: hard). It is constructed with 128 modules and 126 links, based on Nick Robinson's trimodule.
I spent the holiday weekend becoming fluent in the basics of modular origami. With practice, you can churn out the below models surprisingly quickly.
I came across this Dutch site called "Wat Maakt Suzette Nu?", which featured a project created with Math Craft instructions for modular origami. Suzette, the creator, did an incredible job in terms of craftsmanship and color...
I don't think I should be eligible to win the prize since I'm an admin over at Math Craft, so I decided I might as well contribute a few random bug shots. Butterfly:
Did you know that you can "write" in polyhedra? I just stumbled across a $24.99 font called Divina Proportione. Created by Brazilian graphic designer Paulo W, the typeface is constructed with beautiful geometric renderings by the famous Renaissance printmaker Albrecht Dürer.
First came the Rubik’s cube, a simple 3x3 puzzle. Then came Rubik’s Revenge, a 4x4 monstrosity. Eventually, the real whizzes attempted to conquer the V-Cube 6 and the V-Cube 7.
Arvind Gupta is an Indian educator and inventor who makes whimsical, elegant toys from simple and inexpensive materials. His site has hundreds of free project tutorials, with simply outlined instructions in the categories of science, math, astronomy and more. Below, peruse the video gallery and images for a selection of Gupta's inspiring work.
Who says nothing productive ever came out of doodling? Certainly not the hacker responsible for this fun (and at least somewhat functional) paper-and-pencil touchpad, which takes advantage of the natural conductivity of graphite: There isn’t much to explain here. It just uses pencil graphite on paper as a kind of two dimensional potentiometer. Four voltage dividers between 5v, 2M ohm resistors, the paper, and my grounded finger feeds signals from each corner into an Arduino. The Arduino does ...
Engineer-turned-artist Jim Campbell's recent installation "Scattered Light" converts New York City's Madison Square Park into a ghostly world of light bulb pixels. Campbell dangled 2,000 floating LED light bulbs programmed to display shadowy human silhouettes passing by.
What is the best way to level up? My answer to you is all about the calves! They're all over the feed, free to collect, and usually easy to get as there are 10 per post available. I've been collecting calves for a a long time now, because they have the best coin collect rate per day, but tonight I did some more math that proves their awesomeness!
If you have any doubt about how secure that strong password you created really is, there's an easy way to check online. Just visit HowSecureIsMyPassword.net, which uses a combination of math and statistics to determine how long it would take for a PC to crack your password. It's sponsored by Dashlane, one of the top password managers available, and also gives you tips on how to make your password or passphrase stronger. The site claims the password submitted is not sent over the web, and its ...
Oh, what fun you can have with a little math + a little origami. Bradford Hansen-Smith folds intricate geometric sculptures entirely from paper plates and is kind enough to offer a few HowTo's to get you started. Examples of his work below; scroll all the way down for the HowTo.
In this how to you will learn how to measure things indirectly. Indirect measurement is when you calculate something's measurement by measure the shadow. First, all of your measurement have to be taken around the same time. Next, measure your height. After, measure the object's shadow. After put the tip's of your toes on the edge of an object's shadow. Now you just use a proportion to solve what the height is. Here is a link to help you. Indirect Measurement - Math Dictionary.
