Rod calculus or rod calculation was the mechanical method of algorithmic computation with counting rods in China from the Warring States to Ming dynasty before the counting rods were increasingly replaced by the more convenient and faster abacus. Rod calculus played a key role in the development of Chinese mathematics to its height in Song Dynasty and Yuan Dynasty, culminating in the invention
of polynomial equations of up to four unknowns in the work of Zhu Shijie.
Japanese counting board with gridsRod calculus facsimile from the Yongle encyclopedia
Rodcalculus or rod calculation was the mechanical method of algorithmic computation with counting rods in China from the Warring States to Ming dynasty...
method for using counting rods for mathematical calculation was called rod calculation or rodcalculus (筹算). Rodcalculus can be used for a wide range...
differential calculus is a subfield of calculus that studies the rates at which quantities change. It is one of the two traditional divisions of calculus, the...
drawn on sand board remained in place from beginning to end, while in rodcalculus, rods from lower rows were physically removed and add to upper row, digit...
decimal system and used on a counting board with a set of counting rods called rodcalculus, consisting of only nine symbols with a blank space on the counting...
000. The world's earliest positional decimal system was the Chinese rodcalculus. Starting from the 2nd century BCE, some Chinese units for length were...
written out in words, although the early Chinese mathematicians employed Rodcalculus involving place value addition, subtraction, multiplication, and division...
began with the wide use of counting rods in China. The earliest written positional records seem to be rodcalculus results in China around 400. Zero was...
The Chinese multiplication table is the first requisite for using the Rodcalculus for carrying out multiplication, division, the extraction of square roots...
Ralph Whitlock Professor Calculus Wikisource has the text of the 1905 New International Encyclopedia article "Divining-rod". Alpha 6 (device) Automatic...
theorem is developed by Sun Tzu. 300 to 500 – China, a description of rodcalculus is written by Sun Tzu. 412 – 485 – Greece, Proclus 420 – 480 – Greece...
known as renal calculus disease, nephrolithiasis or urolithiasis, is a crystallopathy where a solid piece of material (renal calculus) develops in the...
1 chi = 10 cun. Calculation was carried out with place value decimal Rodcalculus. Liu Hui used his rectangle in right angle triangle theorem as the mathematical...
derived using calculus as functions of angle (angle domain) and of time (time domain). The geometry of the system consisting of the piston, rod and crank...
and the manipulation of formulas. Calculus, consisting of the two subfields differential calculus and integral calculus, is the study of continuous functions...
2015". Electoral Calculus. Archived from the original on 17 October 2015. Retrieved 17 October 2015. "Election Data 2010". Electoral Calculus. Archived from...
"Global curvature and self-contact of nonlinearly elastic curves and rods", Calculus of Variations and Partial Differential Equations, 14 (1): 29–68, doi:10...
the concepts now known as calculus. Independently, Gottfried Wilhelm Leibniz, developed calculus and much of the calculus notation still in use today...
reduction is possible; lambda calculus is a particular case of an abstract rewriting system. In the untyped lambda calculus, for example, the term ( λ x...
Whistling Calculus for Tax Purposes (TV Series) (1989) "Brian Eno is MORE DARK THAN SHARK". Moredarkthanshark.org. Retrieved 13 February 2021. "Rod Melvin"...
properties a tableau calculus may or may not possess are completeness, destructiveness, and proof confluence. A tableau calculus is called complete if...
of the worm ouroboros embedded in a mathematical, non-numerical calculus". The calculus derives from the confluence of the cybernetic logic of feedback...
century CE. Their work, completed two centuries before the invention of calculus in Europe, provided what is now considered the first example of a power...