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Another policy commonly used by 4.0-scale schools is to mimic the eleven-point weighted scale (see below) by adding a .33 (one-third of a letter grade) to honors or advanced placement class. (For example, a B in a regular class would be a 3.0, but in honors or AP class it would become a B+, or 3.33).
In addition, grading scales at university-level institutions have changed frequently. Grading scales can be 1 to 8, 1 to 4, or A through G, where A is on a 4.0 scale or on a 5.0 scale. The most common scale is now 1 to 7, with 9 being the highest grade obtained. In addition, degrees are awarded in a Class, depending on the grades received.
In the Philippines, some universities follow a 4-Point Scale, which resembles or is equivalent to the U.S. grading system. This system uses a grade between 0.00 to 4.00 wherein 4.00 is the highest and 0.00 being a failing mark. Other universities follow a 5-Point Scale, wherein the highest grade is a 1.00 and the lowest is a 5.00 (failing mark).
Specifications such as + and −, half grades, and grades like 6/7 are sometimes used. Note that the grades used in primary school are derived from this scale, with Insufficient meaning "4 or less", and the other grades standing for 5-6, 7-8 and 9-10 respectively. A 10 is not an uncommon grade, especially in low-interest subjects.
To calculate averages of suffixed grades, they are assigned fractional values, where 1 is 1.0, 1− is 1.3, 2+ is 1.7, 2 is 2.0, 2− is 2.3 and so on. As schools are governed by the states, not by the federal government, there are slight differences.
In two most recent investigations using statistically stable samples for Italian earthquakes (approximately 100,000 events over the period 1981–2002 in the Richter local [M L ] magnitude range of 3.5–5.8) [5] and for Indian earthquakes exemplified by an aftershock sequence of 121 events with M s (surface wave magnitude) > 4.0 in 2001 in the Bhuj area of northwestern India, [4] the latest ...
The first scale for measuring earthquake magnitudes, developed in 1935 by Charles F. Richter and popularly known as the "Richter" scale, is actually the local magnitude scale, label ML or M L. [11] Richter established two features now common to all magnitude scales.
The Richter scale [1] (/ ˈ r ɪ k t ər /), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it the "magnitude scale". [3]