reprsentation of mathmatical equation

sarah ahmed · 2011-02-21 01:33:15

hello
is this is good representation of mathmatical equation???

If x_a=0 and y_a=0
then, z_a = 1

[tex] z(t_a,t_b )= ∑_(a=1)^N z_a [/tex]

I hope that someone can help me with this equation

thanks

Bob · 2011-02-21 01:37:03

hi Sarah

I see you are on-line now. Please reply so I can ask some questions about your problem

Oh darn it. You have gone off-line. I'll have a look later to see if you are back.

I don't know about [tex]. In LaTex do you mean

If

then,

At the moment this isn't making complete sense to me.

You seem to have x, y then suddenly t. Is z defined inductively ? ..... I think that's the right word ... in other words you say what the starting value is and then define subsequent values in terms of the one before.

To get the correct formatting click on my LaTex to view the syntax. Each line of maths must commence with square brackets math and end with square brackets /math.

Bob

Last edited by Bob (2011-02-21 01:48:04)

sarah ahmed · 2011-02-21 03:27:56

thanks alot for your reply.
ok you are right, the equations above doesn't make sense I'm sorry let me write it in another way:

[ math] If N(x,v_a )=0 and N(x,v_b )=0 [/math]
[ math] then, Tx= 1 [/math]

[ math] T(v_a,v_b )= ∑_(x=1)^N T_x[/math]

I hope that you can help me to write these equations good format. is it possible to wirte "and" , and "then" words??

thanks

Bob · 2011-02-21 04:42:49

hi Sarah,

The math in square brackets had a space so it didn't format. Easy to adjust though.

Then, for spaces you can put a \

and \sum for the summation sign.

{} brackets not () for the x=1 and then we have

But it still isn't looking much like a question yet. Or are you just trying to get the Latex right first.

Bob

sarah ahmed · 2011-02-21 08:01:51

your format sorry for my bad formatting
my question is this is good representation mathmatically. I mean for example words " and" and "then" can they be used mathmatically or I should replace them by some notation
thanks for help

bobbym · 2011-02-21 08:08:54

Hi sarah ahmed;

For "and" you can use \wedge or \bigwedge:

or

For "then" you can use "implies, \implies"

Can you now tex it yourself?

There are math symbols for everything. If you look at the Principia Mathematica by Bertrand Russell you will only rarely see an english word.

sarah ahmed · 2011-02-21 08:54:52

ok thanks but do you think that there is something must be changed in these equations other than "and" and "then"
thanks again

Bob · 2011-02-21 20:29:31

hi Sarah,

In my post #4 I attempted to put your maths into Latex. You seem to be happy with what I did.

Now, each line makes a good mathematical 'sentence', but I cannot make sense of what they mean when taken together.

You could add nore 'explanation' by things like 'there exists a function ..... such that .......'.

You could use

\exists

and : for such that.

Are you trying to develop the lines for the beginnings of a proof or just experimenting with the symbols ?

If it's the former, it isn't making sense as a whole for me. Perhaps you could give us more of what goes before these lines and where you are going with it.

Bob

Math Is Fun Forum

#1 2011-02-21 01:33:15

reprsentation of mathmatical equation

#2 2011-02-21 01:37:03

Re: reprsentation of mathmatical equation

#3 2011-02-21 03:27:56

Re: reprsentation of mathmatical equation

#4 2011-02-21 04:42:49

Re: reprsentation of mathmatical equation

#5 2011-02-21 08:01:51

Re: reprsentation of mathmatical equation

#6 2011-02-21 08:08:54

Re: reprsentation of mathmatical equation

#7 2011-02-21 08:54:52

Re: reprsentation of mathmatical equation

#8 2011-02-21 20:29:31

Re: reprsentation of mathmatical equation

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