Introduction In OpenGL, we can display a texture to small or large area. Displaying a texture in the same size requires copying all texels texture units to output pixels. If we want to create a large image from a small texture, OpenGL has to create many intermediate pixels.

Okay, so this is I could say delta function day. Break from linear algebra mostly. So we're looking on another type of right-hand side.

Before in the differential equation and in the difference equation. So the right-hand sides up to now, the one we looked at was a uniform constant load second derivative equal one.

Now a point load. Well in a way, we're now solving a whole bunch of problems because the point load can be in different places. So instead of solving one problem with one on the right-hand side, we're solving with a delta function. Now a delta function is, you probably have seen and heard the words and seen the symbol, but maybe not done much with a delta function.

It takes a little practice but it's really worth it. It's a great model of maybe what can't quite happen physically, to have a load acting exactly at a point and nowhere else. So nothing's happening, no load except at that one point.

And let me just, so there's no hesitation in when I change from x to x-a, what does that do to a graph? If I have a function of x and I instead shift the function to f x-aI shift x to x-a, well in this case, and in all cases, it will just shift the graph. In other words, the load moved to the point a.

So there is the shifting load, but the load could fall anywhere between zero and one. So delta of x, the load actually falls at zero. Well we don't quite want that load at the boundary. So let's think of the point a, the load point as somewhere between zero and one.

Can I just take a little time to recall the main fact about delta functions? When I say recall, it could very well be new to you. So that's what the delta function-- that's my best graph of the delta function. But of course I'm, in using the word function, I'm kind of breaking the rules because no function-- I mean the function is, functions can be zero there, can be zero there, but they're not supposed to be infinite at a single point in between, but this one is.Ocean waves move in parallel lines toward the shore.

The figure shows the path that a windsurfer takes across several waves. For this exercise, think of the windsurfer's wake as a line. A cubic function is one in the form f (x) = a x 3 + b x 2 + c x + d.

The "basic" cubic function, f (x) = x 3, is graphed below. The function of the coefficient a in the general equation is to make the graph "wider" or "skinnier", or to reflect it (if negative.

*The Greatest Integer Function, sometimes called the Step Function, returns the greatest integer less than or equal to a number (think of rounding down to an integer).

The middle one writes to the pipeline. Write-Host and Out-Host writes to the console. 'echo' is an alias for Write-Output which writes to the pipeline as well.

The best way to write to the console would be using the Write-Host cmdlet.. When an object is written to the pipeline it .

How to Solve a Cubic Equation. The first time you encounter a cubic equation (which take the form ax3 + bx2 + cx + d = 0), it may seem more or less unsolvable. However, the method for solving cubics has actually existed for centuries!.

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Parent Functions and Transformations – She Loves Math