Double factorial

The normalization constant of equation 1.14 involves the double factorial. So enter the formula... 

The double factorial of n, denoted nil, is the product of every other integer nil = n- n - 2)- n - 4) , where the last element in the product is either 2 or 1, depending on whether n is even or odd. The shifted factorial (also called the rising factorial and Pochhammer s symbol) is denoted by a) (sometimes a ) and is defined as... 

Note that the factorial is undefined for all negative integers and the double factorial for all even negative integers. 

Comprise single-or double-finned tube high-output emitters in factory-made sill-height sheet metal casings or builders work enclosures which may be designed to fit wall to wall. Can be fitted with local output damper control, which reduces the emission to... 

Tomato puree of density 1300 kg/m3 is pumped through a 50 mm diameter factory pipeline at a flowrate of 0.00028 m3/s. It is suggested that in order to double production ... 

Statistical optimization of a controlled release formulation obtained by a double-compression process Application of a Hadamard matrix and a factorial design... 

Transport of liquid nitroglycerine from the nitroglycerine factory to another plant is not allowed in Europe. It can be transported only in mixed forms as dynamites or semi-finished mixtures ready to be used for the manufacture of mining explosives or of double base powders. Only in U.S.A. is the transport of nitroglycerine in special trucks allowed. 

CU. A double base rocket proplnt developed at the Bishopton Ordn Factory, ERDE. Its... 

T.D. Phillips, Effect of Gamma Radiation from Cobalt 60 on the Mechanical Properties of AHH and ARP Double-Base Solid Propellants , NPP TMR-159, Naval Powder Factory, Indian Head... 

The double action pistol enables the firer firstly to cock the hammer and rotate the cylinder and then to release the hammer - all as a result of one long trigger pull. In most designs the weapon can also be thumb-cocked like a single action revolver. The first double action revolver of significance was produced by Beaumont in London in 1855. This could function as either a double action or single action revolver, and the idea was used in the Adams revolver which became the official Brit service revolver. Colt then gave up his Brit factory in 1857 and returned to the USA. His six-chambered percussion 1860 model in. 44 cal was extensively used in the American Civil War and more than 200,000 were made... 

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