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.
A neap tide does not occur during a new Moon or a full Moon... Tides are caused by the pull of the Moon's and Sun's gravity on the water of the earth. During a full Moon and aâ¦ new Moon, the pull of the moon is added to the pull of the Sun, because the Sun, Earth, and Moon are lined up with each other. This is called a spring tide, not a neap tide.