Math Is Fun Forum

SuperLynx

Member

Registered: 2009-06-28

Posts: 335

Re: Expression Formula

A Target is what to apply the expression too. 
Sorry to hear that you've lost your mother, how old was she ?

If your grieving and would rather pass the problem to someone else.  I'll understand.  Although you are the only active one it appears

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Expression Formula

Hi Lynx;

Thanks, she was 79. I am grieving but working on something makes me forget.

Okay, you said this was what the skeleton of the command looks like.

cond( <cond> , <true_expr> , <false_expr> ) my answer was to test this:

Cond(x>0, x, x^2)

First in post #38 you have capital C and in post #40 you have small c for cond. Which is correct?

Is this what you have?

http://www.youtube.com/watch?v=FlQ_v-ECqKU

http://www.youtube.com/watch?v=Kbr6L-oQ … re=related

Last edited by bobbym (2009-11-12 18:12:19)

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

SuperLynx

Member

Registered: 2009-06-28

Posts: 335

Re: Expression Formula

Thanks, she was 79. I am grieving but working on something makes me forget.

Don't block her from your mind She is watching from the other side

First in post #38 you have capital C and in post #40 you have small c for cond. Which is correct?

Smaller C is correct.

Cond(x>0, x, x^2)

For some strange reason it's not working.  Telling me I have to select a target, when I know this software and I have selected a target, arrrgh.

Is this what you have?

http://www.youtube.com/watch?v=FlQ_v-ECqKU

http://www.youtube.com/watch?v=Kbr6L-oQ … re=related

That is what I have

Sarah Rebekah 13

Guest

Re: Expression Formula

Sorry To hear That you loss your Mother.May God Bless.you

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Expression Formula

Hi Sarah;

Thanks.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Sarah Rebekah 13

Guest

Re: Expression Formula

You are welcome.

SuperLynx

Member

Registered: 2009-06-28

Posts: 335

Re: Expression Formula

She probably was a good mother Don't worry bobbym she is watching you beyond the grave to make sure you don't get into trouble

Sarah Rebekah 13

Guest

Re: Expression Formula

did you get the Answer?

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Expression Formula

to make sure you don't get into trouble.

That's a big job.

Here are my thoughts so far: That is a very complicated 3D modelling prog. It looks more sophisticated than Maya.

Question: Why do you need that to draw a 2D graph?

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

SuperLynx

Member

Registered: 2009-06-28

Posts: 335

Re: Expression Formula

Here are my thoughts so far: That is a very complicated 3D modelling prog. It looks more sophisticated than Maya.

It's not really much more complex then Maya.  It uses Visual Basic and Javascript, same as Maya does.  Why do you know MEL scripting ?

Question: Why do you need that to draw a 2D graph?

Not to draw a 2D Graph, create a SINE expression for an object.  If you want I can get you more information to help you understand how to write expressions. 

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Expression Formula

Hi Lynx;

You mean Maya's own scripting language. Sorry, I don't speak any scripting language with the exception of python. I only learnt languages that compile to native code. I don't like the concept of compiling to pcode.

Still send me what you have. Who knows what might happen.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Sarah Rebekah 13

Guest

Re: Expression Formula

Are you ok.Bobbym?

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Expression Formula

Hi Sarah;

Depends on who you ask. Physically and mentally, I am fine. Thanks for caring.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Sarah Rebekah 13

Guest

Re: Expression Formula

You are Welcome.

SuperLynx

Member

Registered: 2009-06-28

Posts: 335

Re: Expression Formula

You mean Maya's own scripting language. Sorry, I don't speak any scripting language with the exception of python. I only learnt languages that compile to native code. I don't like the concept of compiling to pcode.

This program can use Python as well, but you usually have to follow some program code guidelines no matter what language you are witting in, which can be difficult.  I can direct you to a online expression reference ? Where hopefully you would be able to understand the syntax for creating the expressions, from my understand and observing others expressions using this program they weren't that complex, but if you can understand it would help me to learn.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Expression Formula

Hi SuperLynx;

I will try to help as much as I can. Provide me with the links.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

SuperLynx

Member

Registered: 2009-06-28

Posts: 335

Re: Expression Formula

Hopefully, this link gives you a better understanding of how the expressions work in Softimage.  If you do start to understand but need a bit more information to solve my original problem, let me know.

http://softimage.wiki.softimage.com/index.php/Basic_Expressions_Example#Oscillation_Using_Cosine

Sarah Rebekah 13

Guest

Re: Expression Formula

SuperLynx I hope you find the answer.

Sarah Rebekah 13

Guest

Re: Expression Formula

Bobbym How Old are You.if you dont mind me Asking?

Sarah Rebekah 13

Guest

Re: Expression Formula

SuperLynx I find A site That have video on Expression  Mathpower.com

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Expression Formula

Hi Sarah Rebekah 13;

Full grown physically, younger mentally. Let's just say I am forgetting my birthdays.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

SuperLynx

Member

Registered: 2009-06-28

Posts: 335

Re: Expression Formula

Sarah thank you but it doesn't go into how to write out the expression.  I understand that expressions need to be written in brackets, and you can nest brackets within brackets but it's the order in relation to the program I use, that I'm having a hard time understanding.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Expression Formula

Hi SuperLynx;

Still haven't absorbed everything I need from your link. I haven't forgotten your problem.

Last edited by bobbym (2009-11-19 14:05:20)

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Sarah Rebekah 13

Guest

Re: Expression Formula

OK SuperLynx.You are going to have to find A video on Writeing Expression.

SuperLynx

Member

Registered: 2009-06-28

Posts: 335

Re: Expression Formula

I hope you get it figured out Bobbym.