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2. Branch point - Wikipedia

   en.wikipedia.org/wiki/Branch_point

   In particular, a branch of the logarithm exists in the complement of any ray from the origin to infinity: a branch cut. A common choice of branch cut is the negative real axis, although the choice is largely a matter of convenience. The logarithm has a jump discontinuity of 2 π i when crossing the branch cut. The logarithm can be made ...

3. Mazda Z engine - Wikipedia

   en.wikipedia.org/wiki/Mazda_Z_engine

   The Z5 engine was introduced as the first of a newer line of Mazda Z-series engines. The Z series was a new design based on the B-series block, block internals and oil-pan and a different DOHC head. [1] Early versions of this motor had a chain driven exhaust cam. The block is cast iron, the oil-pan is a 2-piece design with an upper aluminum and ...

4. Lambert W function - Wikipedia

   en.wikipedia.org/wiki/Lambert_W_function

   The branch point for the principal branch is at z = − ⁠ 1 / e ⁠, with a branch cut that extends to −∞ along the negative real axis. This branch cut separates the principal branch from the two branches W −1 and W 1. In all branches W k with k ≠ 0, there is a branch point at z = 0 and a branch cut along the entire negative real axis.

5. Nissan Z engine - Wikipedia

   en.wikipedia.org/wiki/Nissan_Z_engine

   All Z engines had 4 cylinders, a total of 8 valves and a single overhead camshaft . Displacements ranged from 1.6 L to 2.4 L.The Z series' engine blocks were nearly identical to those of the earlier L Series with the exception of the Z24. While the Z16 and Z18 engines had a deck height similar to the earlier L13/L14/L16/L18 variants, the Z24 ...

6. Motor oil - Wikipedia

   en.wikipedia.org/wiki/Motor_oil

   An oil pump, a vane or gear pump powered by the engine, pumps the oil throughout the engine, including the oil filter. Oil filters can be a full flow or bypass type. In the crankcase of a vehicle engine, motor oil lubricates rotating or sliding surfaces between the crankshaft journal bearings (main bearings and big-end bearings) and rods ...

7. Contour integration - Wikipedia

   en.wikipedia.org/wiki/Contour_integration

   However, the important thing to note is that z 1/2 = e (Log z)/2, so z 1/2 has a branch cut. This affects our choice of the contour C. Normally the logarithm branch cut is defined as the negative real axis, however, this makes the calculation of the integral slightly more complicated, so we define it to be the positive real axis.