Showing posts with label Mathematics. Show all posts
Showing posts with label Mathematics. Show all posts

Log of base 2 calculator

Simply because I found myself needing to work out the log of base 2 for a series of numbers whilst studying and comparing several 'divide and conquer' algorithms, I decided to write a simple log of base 2 calculator. You can try it by following the link below.



Log of base 2 calculator running on my Lumia 950
As you can see from the screenshot, the applet keeps a record of all of your calculations until you refresh the page and the results are returned with 15 decimal places accuracy.

It is hoped that the page will be of use to students of computer science, mathematics, or any of the natural sciences that require logs of base 2. It is also hoped that the app will be of use to anyone who simply loves their powers of 2 (and who doesn't?).

Ways to waste your time on the web today

Without further ado, here is a list of ways you can waste your time.  Got your browser plugged in? Good, let's go...

Wire Frame, by Vector Lounge

Ever needed to play with a skeleton puppet? Well me neither, but now you can.  Well, it is Halloween soon.  BYT - you will need Flash for this to work.
Pull the strings - make it walk.


12 by 12 Tic-Tac-Toe

Play Tic-Tac-Toe (it was called 'Naughts and Crosses' when I was young) against your browser.  Get five in a row to win.
It's like Tic-Tac-Toe, only 12 times bigger and you need 5 in a row to win.

Mind Cards


Mind cards is a game of quick-thinking.  Answer as many simple challenges as possible in two minutes.  Score points.  Then compare yourself to the high score board.  Then feel a little bit sad.

The whole game reminds me somewhat the adventure game Abyss that I used to play on the Acorn Electron.  Only the Abyss was much harder and made you feel much stupider.

One of many types of mental challenges. Can you match the pattern as quickly as you can?

The mathematics doesn't get much harder than this, but how quickly can you click and type in the answer?

Tonfall sequencer


I don't know what this is, but I like it!

You start with a load of colourful circles drifting slowly around your screen in something akin to Brownian motion.  As the circles drift closer to each other they form connections like neurons in your brain all the time playing a haunting melody.  Change the melody by dragging the little circles around the screen, making and breaking connections and so on.

Computer generated music never sounded so haunting.

And finally.....

The Age Calc

Calculate your age in years, months, weeks, days - and if you know the exact time of your birth - in minutes and seconds.  Loads of fun to keep you going until next week.




Circles

Circles is a program to aid independent learning in mathematics.


Circles was written for Mr Bakr Al Bazi, Mathematics teacher at the Grammar School at Leeds, who writes:


"3 circles, 6 values for each circle. Students started to investigate these values with no input from me."

"Independent Learning was taking place. Ratio, radius, diameter.... every notion that involved circles was discussed and then pi came in." 

"It was wonderful! I realised that adopting the use of new technology to support traditional instructions has not only it made me change the way I teach, but also the way students learn." 

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