I'm using align, and I would like the equations to be left aligned, but when I write a single &
to left align, they are placed right beside the \Leftrightarrow
.
How can I fix this?
Here's my code:
\begin{align*}
& \left(\dfrac{a}{2}\right)^2\cdot\pi+\left(\dfrac{b}{2}\right)^2
\cdot\pi-\left(\dfrac{\sqrt{a^2+b^2}}{2}\right)^2\cdot\pi+ab &=ab\\
\Leftrightarrow & \dfrac{a^2}{4}\cdot\pi+\dfrac{b^2}{4}\cdot\pi-\dfrac
{a^2+b^2}{4}\cdot\pi+ab &=ab\\
\Leftrightarrow & \dfrac{a^2}{4}\cdot\pi+\dfrac{b^2}{4}\cdot\pi-\left(\dfrac
{a^2}{4}\cdot\pi+\dfrac{b^2}{4}\cdot\pi\right)+ab &=ab\\
\Leftrightarrow & ab&=ab
\end{align*}
flalign
& \Leftrightarrow
rather than\Leftrightarrow &
if you want the equations to start at the same point, without being flush against the left margin.