Avoid any diet that suggests you eat a certain formula, food, or combination of foods for easy weight loss.

Like many of his contemporaries, Milne relied on certain formulas.

The group, or crowd, is swayed by words, especially if certain formulae are repeated frequently.

Then he spent some time at his desk over certain intricate formulas.

There is this number that we calculate for a given thermo-mechanical change using certain formulas.

There is no certain formula for making good, original melody, yet we can give some principles which will help towards this goal.

That, they maintain, would be a certain formula for losing money.

Now will you go to work and see what you can do about a certain formula?

Of course the correct design depends on certain ther-modynamic formulas with which you probably aren't familiar.

In the theory of power series, it is also often treated as 1 by convention, to make certain formulas more concise.