In pattern recognition, information retrieval and classification (machine learning), precision (also called positive predictive value) is the fraction of relevant instances among the retrieved instances, while recall (also known as sensitivity) is the fraction of the total amount of relevant instances that were actually retrieved.Both precision and recall are therefore based on an ...

SHARP 11"x18" High Precision Toolroom Lathe, 5C Hardinge Type Design 1118H . $32,900.00. Control: Manual. Watch. Lathe Tailstock Floating Die Holder SET MT 1, MT 2 inches includes 4 die holder. $43.19 to $61.19. From India. Free shipping. Brand: Unbranded Control: Manual. OPERATOR'S MANUAL MODEL HLV-H HARDINGE HS SUPER-PRECISION TOOL ROOM LATHE 1978. $14.00. .

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Shin Gang Precision ... (Motor Type) Asphalt Testing Machine. SGF-606. Asphalt Marshall Compression Tester (Digital Type) Asphalt Testing Machine. SGF-605-1/605-2. Automatic Asphalt Compactor. Asphalt Testing Machine. SGF-613. Apparatus for Theoretical Maximum Specific Gravity.

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03.08.2020 · Machine tool, any stationary power-driven machine that is used to shape or form parts made of metal or other materials. Machine tools were among the innovations that made mass production and interchangeable parts realities in the 19th century. Learn more about the tools, including the various types.

Machine precision is the smallest number ε such that the difference between 1 and 1 + ε is nonzero, ie., it is the smallest difference between two numbers that the computer recognizes. On a 32 bit computer, single precision is 2-23 (approximately 10-7) while double precision is 2-52 (approximately 10-16) .

Details. double creates a double-precision vector of the specified length. The elements of the vector are all equal to 0.It is identical to numeric.. as.double is a generic function. It is identical to as.numeric.Methods should return an object of base type "double". is.double is a test of double type.. R has no single precision data type. All real numbers are stored in double precision .

Autodesk PartMaker. PartMaker® software enables high precision programming for Swiss-type lathes. Machine parts complete with efficient cycle times and .

Precision machining is a type of technical manufacturing that is essential in creating and designing machines, parts, tools, and other hardware that are essential in modern manufacturing to maintain process controls and tolerances that function under extremely tight specifications. It is used to make up the many large and small objects and their components that we use in everyday life. If an ...

Shin Gang Precision ... (Motor Type) Asphalt Testing Machine. SGF-606. Asphalt Marshall Compression Tester (Digital Type) Asphalt Testing Machine. SGF-605-1/605-2. Automatic Asphalt Compactor. Asphalt Testing Machine. SGF-613. Apparatus for Theoretical Maximum Specific Gravity.

SUPER-PRECISION® is a combination of best practice design and manufacturing of hardware and software integrated into a machine tool that produces the highest level of precision turning centers for production that require the least amount of human intervention in the marketplace today.

Tecnopinz is globally renowned for the design and manufacturing of high-precision tool clamping systems and customized precision mechanics. Up-to-date technical expertise combined with the most cutting-edge machining and quality control technology, allow us to deliver rapid, flexible and effective production services.

Lathes & Turning Machines - Precision Lathes for sale listings - We have 30 listings for Precision Lathes listed below. Find items by using the following search options. You can also click on the column heading to sort through the listings. For more information on an item, contact the seller directly.

Adopts the high precision axis, and the additional lubrication system prolongs machine life span. Each straightening wheel of the S series precision straightener adopts the flatting satellite wheel to prevent the distortion in the manufacturing process from happening, which improved the products flatness quality.

Adopts the high precision axis, and the additional lubrication system prolongs machine life span. Each straightening wheel of the S series precision straightener adopts the flatting satellite wheel to prevent the distortion in the manufacturing process from happening, which improved the products flatness quality.

Schaublin Machines SA est basée au cœur de la région qui a vu naître l'histoire de la machine-outil en Suisse. Beaucoup d'entreprises de renom international ont vu le jour dans l'arc jurassien où la construction de machines-outils de haute précision a permis aux habitants de ces vallées de développer le savoir-faire et le génie mécanique nécessaire à la fabrication de ces ...