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In mathematics, a curve (also called a curved line in older texts) is an object similar to a line which doesn't have to be straight.
Intuitively, a curve may be thought as the trace left by a moving point. This is the definition that appeared, more 2000 years, ago in Euclid's Elements: "The [curved] line is […] the first species of quantity, which has only one dimension, namely length, without any width nor depth, and is nothing else than the flow or run of the point which […] will leave from its imaginary moving some vestige in length, exempt of any width."This definition of a curve has been formalized in modern mathematics as: A curve is the image of a continuous function from an interval to a topological space. In some context, the function that defines the curve is called a parametrization, and the curve is a parametric curve. In this article, these curves are sometimes called topological curves for distinguishing them from more constrained curves such as differentiable curves. This definition encompasses most curves that are studied in mathematics; notable exceptions are level curves (which are unions of curves and isolated points), and algebraic curves (see below). Level curves and algebraic curves are sometimes called implicit curves, since they are generally defined by implicit equations.
Nevertheless, the class of topological curves is very broad, and contains some curves that do not look as one may expect for a curve, or even cannot been drawn. This is the case of space-filling curves and fractal curves. For insuring more regularity, the function that defines a curve is often supposed to be differentiable, and the curve is then said a differentiable curve.
A plane algebraic curve is the zero set of a polynomial in two indeterminates. More generally, an algebraic curve is the zero set of a finite set of polynomials, which satisfies the further condition of being an algebraic variety of dimension one. If the coefficients of the polynomials belong to a field k, the curve is said to be defined over k. In the common case of a real algebraic curve, where k is the field of real numbers, an algebraic curve is a finite union of topological curves. When complex zeros are considered, one has a complex algebraic curve, which, from the topologically point of view, is not a curve, but a surface, and is often called a Riemann surface. Although not being curves in the common sense, algebraic curves defined over other fields have been widely studied. In particular, algebraic curves over a finite field are widely used in modern cryptography.
42" curved led light bar. Came off my 3rd gen 4runner. Light and mount only, no hardware, harness or switches. $30obo might consider trades 9mm, 556/223. I don't buy into the gouging bs though. Keep that in mind before you pm me. Pick up only, Washougal.
For Sale is my Like NEW Sig P320 Slightly Curved Dual adjustable Trigger by Armory Craft. Trigger is in Excellent Condition! Comes with Allen wrench adjustment tool.
Cash Only. No Trades.
Will Ship at Buyers Expense.
I’m selling two k98 Mauser laminate stock sets. One is a cupped butt plate style and the other is an earlier curved plate style. Each was refurbished after the war and are likely Russian Captures. They are in fair condition and solid except for internal delaminations due to shrinkage and some...
I saw a very good deal on a Beretta 92X compact. I much prefer the original 92FS backstrap to the newer flat backstrap. Does anyone have first hand experience handling the X with different grips that might restore the larger curved backstrap...
UPDATED 12/4/20 -
The batch listed below has been shipped, I should have them in hand next week.
I will not accept funds in advance but will "put your name" and reserve units and then follow up when they are in hand.
Our kind friends at LaRue have sent me another small batch of triggers...
>>>>>>>>>>. ~ SOLD ~ <<<<<<<<<<
Selling due to future medical expenses (broke #10 YOO HOO)..!!! otherwise I would not part with this.
Geissele SSA-"e" (enhanced) 2 stage curved trigger.
In my opinion the finest trigger available for your AR-15 / 10.
This is a lightly used "take off"...
UPDATE: CLOSED FOR NEW GROUP MEMBERS.
If you want one, feel free to post as a "backup", there's usually a few people who need to back out and I'll have an extra or two. If that happens, I'll offer them in order of post here.
Trigger Group: MBT-2S (Curved)
The Velocity AR Drop-in Trigger can be purchased with a 3 pound, 3.5 pound, 4 pound, or 4.5 pound trigger pull all at the same low price,
so even those with heavier hands can find a trigger that gives just the right amount of resistance
Buy the Velocity Trigger Now for $134.95
The trigger is...