8-Bit Software Online Conversion

¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶           ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ Many thanks to all members who have sent in reviews and articles. I have managed to squeeze in a lot this month. If you have an article that you would like circulated then please write it marking your envelopes "Articles/Reviews". An article is classed as a submission which is greater than 300 words. MANDLEBROT SET ARTICLE= This article is to be used with the Mandlebrot set program on this month's disc. Upon loading the program the Mandlebrot screen is loaded and the user is offered three options- (Z)oom, (S)ave and (R)eset. * ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶           ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ ZOOM= Press Z. You now have a flashing square in the centre of the screen which you can move using the cursor keys. The delete key reduces the size of the square and increases the magnification. The copy key does the reverse of this. Once you have selected your position and magnification press Space. The co-ordinates of the Mandlebrot part you have chosen will be shown. Press Space again. You are now asked for a colour set(1/2). Colour set 1 is worked out using logs. The main Mandlebrot is plotted using these colours. Colour set 2 is worked out by dividing the number of * ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶           ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ iterations by 8 and is best for close up work. Just use colour 1 until you get the hang of it. Enter the colour set and press Return. At the top left of the screen is the number of recursions done per pixel. If you think the part of the Mandlebrot set you magnified is 'interesting' then make note of the x, y and m values down on the left hand side. Hint: Don't try to Zoom in large steps ie. don't make the square too small. It is best to zoom in small steps. SAVE= This saves the screen currently showing using addresses &3000 th &8000. * ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶           ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ Just select the option and follow instructions. Many thanks to Ian Roxborough(9IA) for sending in this article. if you create any 'interesting' screens as mentioned by Ian, then send them in and we'll get them on an issue disc for you. IF YOU ARE THINKING OF WRITING A PROGRAM IN THE NEAR FUTURE---------------------- then hang on until next month when Ian's article on programming and presentation will be published. Ian is also working on a program called LISSA. The initial program he sent to me is outstanding- watch this space for further developments.