Real numbers that are less than or equal to zero. Real numbers that are greater than or equal to zero. Negative birefringence means that is less than zero. It can be negative, zero, or positive. These values correspond to the zero tide radii. We consider the residuals as random variables drawn independently from some distribution with mean zero. B. Each can have one of two values, zero or one. We're not working with a brain that's near absolute zero. Garbage is identified by having a reference count of zero. Each has a mean and skewness of zero. This is usually the same as saying that it has zero nodes. Note that there is a confusion about the glyph of Malayalam digit zero. Any dividend divided by zero is undefined. This results in a stationary slinky with zero velocity. This fog can be dense with visibility nearly zero.