Teach David

David · 2014-12-07 00:28:22

bobbym wrote:

How would you graph Shivam's example?
See you later, have a chore. Take a look around in the help in the meantime.

Something like :

Plot[y = x^2 + x - 6, {x, 10, -10}]

?

Agnishom · 2014-12-07 01:00:23

Yep, that works!

Or even simpler:

Plot[x^2 + x - 6, {x, 10, -10}]

Last edited by Agnishom (2014-12-07 01:00:55)

David · 2014-12-07 01:00:57

Chris2 wrote:

bobbym wrote:
You can graph it easily:
Plot[3x - 9,{x,-10,10}]
What does this part means? {x,-10,10} x-min and x-max?

bobbym · 2014-12-07 02:57:24

Hi;

Got it now?

David · 2014-12-07 02:57:59

Hi;
Yes, bobbym

bobbym · 2014-12-07 03:00:13

What are you looking at now?

David · 2014-12-07 03:04:34

planing to have my eye shut. Night.

bobbym · 2014-12-07 03:05:42

Hi;

Okay, see you later and sleep well.

David · 2014-12-08 02:18:59

ready to learn.

bobbym · 2014-12-08 02:20:27

Howdy;

Where are you in the help?

David · 2014-12-08 02:23:21

Show me something interesting.

bobbym · 2014-12-08 02:24:34

Let us do some Inequality plots!

David · 2014-12-08 02:24:59

Okay.

bobbym · 2014-12-08 02:26:40

This will be hard since I have never graphed an inequality with m, so hold on.

Apparently, it is all done with the command RegionPlot.

Look at this one!

RegionPlot[x^2 + y^2 < 1, {x, -1, 1}, {y, -1, 1}, Mesh -> 10, MeshShading -> {{Automatic, None}, {None, Automatic}}, ColorFunction -> "DarkRainbow"]

David · 2014-12-08 02:33:30

Um... I Don't really understand. O.O the codes O.O...

bobbym · 2014-12-08 02:36:16

Neither do I, that is a complicated one. I just want you to see it. It is amazing.

Just cut and paste

RegionPlot[x^2 + y^2 < 1, {x, -1, 1}, {y, -1, 1}, Mesh -> 10, MeshShading -> {{Automatic, None}, {None, Automatic}}, ColorFunction -> "DarkRainbow"]

David · 2014-12-08 02:36:57

I typed it. M is so much fun and fascinating.

Last edited by David (2014-12-08 02:37:24)

bobbym · 2014-12-08 02:37:42

You must type faster than me. Okay, run it!

David · 2014-12-08 02:38:03

I did. v0dvGpo.png?1

Last edited by David (2014-12-08 02:39:01)

bobbym · 2014-12-08 02:41:17

Look at that and all done with one command! Can you believe that is an inequality?

David · 2014-12-08 02:42:06

NOPE! I can't.

bobbym · 2014-12-08 02:44:52

This one is a bit simpler but still way too much for my brain.

You can just copy and paste.

RegionPlot[x^2 + y^3 < 2, {x, -2, 2}, {y, -2, 2}]

David · 2014-12-08 02:46:54

Interesting.

Last edited by David (2014-12-08 02:47:07)

bobbym · 2014-12-08 02:49:21

The blue part is all the points that satisfy that inequality.

We will try one on our own.

Graph the inequality x + y < 10

David · 2014-12-08 02:52:15

I got this :

Math Is Fun Forum

#51 2014-12-07 00:28:22

Re: Teach David

#52 2014-12-07 01:00:23

Re: Teach David

#53 2014-12-07 01:00:57

Re: Teach David

#54 2014-12-07 02:57:24

Re: Teach David

#55 2014-12-07 02:57:59

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#56 2014-12-07 03:00:13

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#57 2014-12-07 03:04:34

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#58 2014-12-07 03:05:42

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#59 2014-12-08 02:18:59

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#60 2014-12-08 02:20:27

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#61 2014-12-08 02:23:21

Re: Teach David

#62 2014-12-08 02:24:34

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#63 2014-12-08 02:24:59

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#67 2014-12-08 02:36:57

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#72 2014-12-08 02:44:52

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#73 2014-12-08 02:46:54

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