It's not real, because you have to work around a lot of variables.

It is a market where a number of variables, not just price, are important.

If you know any two of the above variables, it is easy to work out the third.

There are a huge number of variables with which to deal.

For him, painting is a set of physical variables and he has spent a career playing with them.

"There were a lot of variables trying to time everything," Green said.

The number of variables is in the hundreds or thousands.

Whether the music will begin to matter in America depends on a number of variables.

The order of the variables does not matter unless there is a power.