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As in many-integrator backstepping, the single-step procedure can be completed iteratively to stabilize an entire strict-feedback system. In each step, The smallest "unstabilized" single-step strict-feedback system is isolated. Feedback is used to convert the system into a single-integrator system. The resulting single-integrator system is ...
Royal Robbins resting on his aiders during the 3rd pitch of the FA of the Salathé Wall (VI 5.9 C2). Aid climbing traces its origins to the start of all climbing, with ladders used on historic ascents such as the 1492 ascent of Mont Aiguille, the 1786 ascent of Mont Blanc, or the 1893 ascent of Devils Tower, and with drilled bolts on historic ascents such as the 1875 first ascent of Half Dome.
UIAA-certified twin ropes. Rock-climbing equipment is broadly classed as Personal Protective Equipment (PPE). [7] The International Climbing and Mountaineering Federation (known as the UIAA) was an important early body—and the only body pre-1995—in setting standards for climbing equipment.
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(The Center Square) – Business owners from historically disadvantaged communities in Pennsylvania will soon have access to special grants meant to assist with start-up and expansion costs. For ...
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The simplest and oldest one-step method, the explicit Euler method, was published by Leonhard Euler in 1768. After a group of multi-step methods was presented in 1883, Carl Runge, Karl Heun and Wilhelm Kutta developed significant improvements to Euler's method around 1900. These gave rise to the large group of Runge-Kutta methods, which form ...