In vector calculus, divergence is a vector operator that measures the magnitude of a vector field 's source or sink at a given point, in terms of a signed scalar.ore rigorously, the divergence of a vector field F at a point p is defined as the limit of the net flow of F across the smooth boundary of a three-dimensional region V divided by the volume of V as V shrinks to p. Formally,
The Federal Social Security Administration administers the Supplemental Security Income ( SSI ) Program , under which persons age 65 years and older , or those who are blind or disabled ( including children ) , receive maintenance payments from that agency and supportive services ( including emergency assistance and payment for burial ) through the ...
SSI is also for disabled persons, but is specifically for those who have demonstrated a financial need. If you are disabled, you may qualify for SSI whether you have worked in recent years or not. Generally speaking, the best time to file for SSI is as soon as you realize you may have a disability which is likely to last over a year.