### \phantom is not calculated correctly for =

Hello everyone, I have found myself resorting to \phantom for some things, and am having trouble getting it to calculate correctly for the = sign. Would anyone please confirm this behaviour? The following is a piece of Tex code that I copy and pasted from my Lyx file. \begin{align*} \vec{w} =a+b\\ \phantom{=}a+b\end{align*} It should display w = a+b a+b where the second a+b should line up perfectly with the first a+b. This is not the case. Thank you -Patrick

### Re: \phantom is not calculated correctly for =

On 25/05/2011 8:05 PM, Patrick Li wrote: Hello everyone, I have found myself resorting to \phantom for some things, and am having trouble getting it to calculate correctly for the = sign. Would anyone please confirm this behaviour? The following is a piece of Tex code that I copy and pasted from my Lyx file. \begin{align*} \vec{w} =a+b\\ \phantom{=}a+b\end{align*} It should display w = a+b a+b where the second a+b should line up perfectly with the first a+b. This is not the case. Thank you -Patrick TeX adds some space around = because it is one of the relational operators, but inside the \phantom{} it is not a relational operator since it does not have any operands on the left or rigth within the {}. Why don't you put the = to the left of the alignment? \begin{align*} \vec{w} = a+b\\ a+b\end{align*} -- Julien

### \phantom is not calculated correctly for =

Hello everyone, I have found myself resorting to \phantom for some things, and am having trouble getting it to calculate correctly for the = sign. Would anyone please confirm this behaviour? The following is a piece of Tex code that I copy and pasted from my Lyx file. \begin{align*} \vec{w} =a+b\\ \phantom{=}a+b\end{align*} It should display w = a+b a+b where the second a+b should line up perfectly with the first a+b. This is not the case. Thank you -Patrick

### Re: \phantom is not calculated correctly for =

On 25/05/2011 8:05 PM, Patrick Li wrote: Hello everyone, I have found myself resorting to \phantom for some things, and am having trouble getting it to calculate correctly for the = sign. Would anyone please confirm this behaviour? The following is a piece of Tex code that I copy and pasted from my Lyx file. \begin{align*} \vec{w} =a+b\\ \phantom{=}a+b\end{align*} It should display w = a+b a+b where the second a+b should line up perfectly with the first a+b. This is not the case. Thank you -Patrick TeX adds some space around = because it is one of the relational operators, but inside the \phantom{} it is not a relational operator since it does not have any operands on the left or rigth within the {}. Why don't you put the = to the left of the alignment? \begin{align*} \vec{w} = a+b\\ a+b\end{align*} -- Julien

### \phantom is not calculated correctly for =

Hello everyone, I have found myself resorting to \phantom for some things, and am having trouble getting it to calculate correctly for the = sign. Would anyone please confirm this behaviour? The following is a piece of Tex code that I copy and pasted from my Lyx file. \begin{align*} \vec{w} & =a+b\\ & \phantom{=}a+b\end{align*} It should display w = a+b a+b where the second "a+b" should line up perfectly with the first "a+b". This is not the case. Thank you -Patrick

### Re: \phantom is not calculated correctly for =

On 25/05/2011 8:05 PM, Patrick Li wrote: Hello everyone, I have found myself resorting to \phantom for some things, and am having trouble getting it to calculate correctly for the = sign. Would anyone please confirm this behaviour? The following is a piece of Tex code that I copy and pasted from my Lyx file. \begin{align*} \vec{w}& =a+b\\ & \phantom{=}a+b\end{align*} It should display w = a+b a+b where the second "a+b" should line up perfectly with the first "a+b". This is not the case. Thank you -Patrick TeX adds some space around = because it is one of the relational operators, but inside the \phantom{} it is not a relational operator since it does not have any operands on the left or rigth within the {}. Why don't you put the = to the left of the alignment? > \begin{align*} > > \vec{w} = & a+b\\ > > & a+b\end{align*} -- Julien