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This article mainly introduces the meaning of the calculator rad, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

The calculator rad is the abbreviation of "radian", indicating the Radian system; the Radian system refers to the way in which the angle of the center angle is measured by the ratio of the arc length to the radius, and is also expressed by the symbol rad, which is read as Radian, and the angle of the center of the arc equal to the radius length is called the angle of 1 Radian.

RAD is the abbreviation of "radian", which means "Radian system (a unit of measurement angle, 30 °= π / 6, 60 °= π / 3, 90 °= π / 2180 °= π)".

DEG is the abbreviation of "degree", which means "angle system".

The way in which the angle of the center angle is measured by the ratio of the arc length to the radius is called the Radian system, which is represented by the symbol rad and read as radians. The angle at the center of an arc equal to a long radius is called an angle of 1 Radian. Because the ratio of the length of the arc to the radius of the circle does not change with the size of the circle, the number of radians is also independent of the radius of the circle. When the angle is given in radians, the unit of radians is usually not written. Another commonly used method of measuring angles is the angular system. The essence of the Radian system is to unify the units of measuring arcs and angles, which greatly simplifies the relevant formulas and operations, especially in higher mathematics.

Related introduction:

Calculator is an electronic machine invented by modern people that can perform digital operations. It is generally composed of arithmetic unit, controller, memory, keyboard, display, power supply and some optional peripherals and electronic accessories, which are composed of manual or mechanical equipment.

Modern electronic calculator is a handheld electronic machine that can perform mathematical operations and has integrated circuit chips, but its structure is much simpler than that of computers. It can be said to be the first generation of electronic computers (computers) with weak functions, but it is more convenient and cheap. It can be widely used in commercial transactions, and it is one of the necessary office supplies. In addition to displaying the calculation results, there are often overflow indications, error indications, and so on. The calculator is powered by an AC converter or battery, which can be recharged with an AC converter or a solar converter. In order to save electricity, the calculator adopts large-scale integrated circuit made by CMOS process.

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