secrets-of-mental-math-malestrom

Foreword
xv
there are also an infinite number of numbers in between. There
are fractions. There are numbers that never end. They get as big
as you want and so small that they’re hard to imagine. You can
know them. With Secrets of Mental Math, you can have even
these in-between numbers come so quickly to your mind that
you’ll have a bit more space in your brain to think about why
our world works this way. One way or another, this book will
help you see that in Nature, it all adds up.