Thanks, anything helps!

]]>Do any of you know of a program (for Windows 7) that can allow me to do math work and scribblings? Right now, I'm using MS Paint, and it gets the job done, but I'm getting frustrated with its shortcomings. Here's a list of the features I would like.

1: Take a snip, and paste it in, resize it, or move it on the canvas. (MS Paint lets me do this.)

2: Invert the colors of a selection (MS Paint lets me do this, as well.)

3: Draw 2D shapes.

4: Write on the canvas with my USB writing pad.

5: Draw lines easily (by pressing a key or something to toggle line mode)

6: Lock graphics, so they can't be erased. E.G. Put my formulas in the canvas, lock them, then I can scribble all over , and delete my writing and have the formulas be unaffected. (can't do this in Paint)

I don't want to pay for software, so ideally it would be free.

Thank you!

]]>Here's the source code:

` ``DelVar L1 5->dim(L1 For(X,1,7 Disp " End Repeat Ans L1(4->L1(5 L1(3->L1(4 L1(2->L1(3 L1(1->L1(2 randInt(1,16->L1(1 Output(8,Ans,0 Disp " getKey X+(Ans=26)-(Ans=24 Ans+16((Ans=0)-(Ans=17->X Output(3,Ans,8 Ans=L1(5 End`

If you see anywhere where I can shave a couple bytes, please let me know. Also, I plan to make a version with a couple more features in the future. If you have any ideas, please let me know and I might implement them.

]]>i^{4} = 1

and when I solved for i by replacing each side of the equation with it's 4th root, i got

i = ^{4}√1 or i=1

knowing that i is defined as √⁻1, i squared both sides to get

i^{2} = 1^{2} or (√⁻1)^{2} = 1^{2} or -1 = 1

is ther a error in the line of reasoning or is this just a property of imagenary numbers?

]]>Thank you for your help! ]]>

from Operating System 5.5 or higher for the TI-83 Premium CE and TI-84 Plus CE/T. This video will

be premiered on September 22nd @ 7:45 AM MST. I am super excited! Please let me know

what you think! Also, I'm not the best YouTuber out there, and I didn't use a camera or mic.

Also, be sure to check your BOOT CODE with [Alpha]+[S]. I haven't tried boot codes newer than

5.1.5, but you can try the tutorial and see how it goes. ]]>

` ``ClrHome 1-->I 3-->X x-->P For(A,1,20 XI/((4I+4-->X P+X/(I+2-->P I+2-->I Output(1,1,P Output(2,1,A`

I modified it from a JavaScript program found here

]]>` ``PROGRAM:HMMYES ClrHome Input "WORD:",Str1 ClrHome "Hmm, yes, the "+Str1+"here is made out of "+Str1+"."-->Str2 Output(1,1,Str2`

I figured out that any string I inputted into the program, even if it had double quotes (") in the middle, would show up in the final result.

For example, if I put in just " for Str1, it would output:

` ``Hmm, yes, the " here is made out of ".`

I did some experimentation and figured out that this worked with any program, and changed what the Input command was followed by, and found that as long as you are prompting a string with the Input command, you can put double quotes into it.

This could mean a whole world of new things that could happen with strings containing double quotes, and although there are still some [obvious] limitations, we now know that Input, and (to an extent) Disp and Output( are able to do this. I hope what I found will benefit the TI-BASIC community.