DEFINITION of 'Actuarial Science '. A discipline that assesses financial risks in the insurance and finance fields using mathematical and statistical methods. Actuarial science applies the mathematics of probability and statistics to define, analyze and solve the financial implications of uncertain future events. Traditional actuarial science largely revolves around the analysis of mortality and the production of life tables, and the application of compound interest. Next Up.
The result is a smaller difference between high and low tides and is known as a neap tide. Neap tides are especially weak tides. They occur when the gravitational forces of the Moon and the Sun are perpendicular to one another (with respect to the Earth). Neap tides occur during quarter moons.
So there is a high tide bulge on two opposite sides of the earth at once, and of course then there are two low tide areas at roughly 90 degree angles to the high tides. A:Tidal forces are caused by the differential pull of gravity on a planetary body or moon. Consider the Earth-moon system.