An abacus with negative number expression function and its application method
A function and negative number technology, applied in the field of abacus with negative number expression function, can solve the problem of limited table number method, and achieve the effect of expanding the calculation function
Inactive Publication Date: 2019-05-21
孙秉璋
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Problems solved by technology
However, due to the simple structure and limited calculation method of the traditional common abacus, it can only perform the four arithmetic operations of addition, subtraction, multiplication and division of positive numbers, and cannot express negative numbers on the abacus and use negative numbers to perform a series of calculations
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[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0031] Such as figure 1 As shown, the present invention provides an abacus with the function of expressing negative numbers, which includes a frame 1 , a beam 2 , a vertical rail 3 and beads 4 . The crossbeam 2 is arranged in the frame 1, and the two ends of the crossbeam 2 are respectively connected with the sides of the frame 1, and the crossbeam 2 divides the area surrounded by the frame 1 into upper and lower parts. A plurality of vertical rails 3 are even...
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The invention relates to an abacus having negative expression function and an appellation thereof. The abacus having negative expression function comprises a frame, a crossbeam, vertical mullions and beads; the crossbeam is arranged in the frame, two ends of the crossbeam are respectively connected with the side edge of the frame, several vertical mullions are uniformly and intervally arranged in the frame; one end of the vertical mullion is fixedly connected with the top edge of the frame, the other end vertically passes through the crossbeam and is fixedly connected with the bottom edge of the frame; the beads movement is set on the vertical mullions; the beads comprise a first upper bead, a second upper bead, an integer bead, and a first lower bead to a third lower bead, the first upper bead and the second upper bead are arranged on the vertical mullions above the crossbeam in order, the integer bead and the first lower bead to the third lower bead are arranged on the vertical mullions below the crossbeam in order, the integer bead comprises an upper state and a lower state, wherein the upper state expresses for minus 1, and the lower state expresses for plus 1. The abacus can express negative number, develops calculating function of the abacus, performs abacus intelligence development function, and has very important meaning.
Description
technical field [0001] The invention belongs to the field of computing tools, and in particular relates to an abacus with a function of expressing negative numbers and an application method thereof. Background technique [0002] The abacus is a traditional calculation tool in China, and the abacus is a great scientific and cultural heritage of the Chinese nation. Abacus has made significant contributions in computing science and educational science. Even in the modern era with the rapid development of computers, abacus still maintains certain advantages in addition and subtraction. In addition to its calculation function, the abacus also has a special educational function. However, the traditional common abacus has a simple structure and limited calculation methods, so it can only perform the four arithmetic operations of addition, subtraction, multiplication, and division of positive numbers, and cannot express negative numbers on the abacus and use negative numbers to pe...
Claims
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IPC IPC(8): G06C1/00
CPCG06C1/00
Inventor 孙秉璋
Owner 孙秉璋