Sometimes you need to enter a space so that the equation tool correctly formats your input, but the extra space messes up the output.
For example if you need to enter...
you have a problem. If you enter pirh the equation tool will interpret the rh as rho and produce:
but if you add a space between the r and h, the equation tool will produce:
What you need is a way of stopping the equation tool from treating the rh as one thing. You need to separate the r and h to stop the character replacement.
To stop the replacement, type !! The !! will be used by the equation tool to format your input but will NOT effect the output.