DirectX not only provides fast access to the hardware and therefore incredibly speedy performance, but it also makes it much easier for hardware developers to produce new devices that work well in the Windows environment. The DirectX APIs take away the necessity of writing your own low-level, device-specific code to access hardware such as the display adapter and network card, making it much easier for you to write programs that take full advantage of the computer s multimedia capabilities.
标签: performance incredibly therefore hardware
上传时间: 2016-02-16
上传用户:秦莞尔w
用C++中的MFC编程实现正轴等角割圆柱投影,实现以下要求: 取克拉索夫斯基椭球 (1)制图区域: Bs=0°, BN=25° LE=105°, LE=125° (2)经纬线间隔: ΔB=ΔL=5° (3)制图比例尺: 1:M0=1:1000 000 (4)标准纬线: Bk=±15° 计算经纬网格点的 x, y,m,n, p
上传时间: 2013-12-29
上传用户:himbly
加密程序源代码* A 变成 C,B 变成 D,a 变成 c,b 变成 d,Y 变成 A, * z 变成 b,以此类推。非字母字符不变。
上传时间: 2013-12-28
上传用户:stvnash
Generate 100 samples of a zero-mean white noise sequence with variance , by using a uniform random number generator. a Compute the autocorrelation of for . b Compute the periodogram estimate and plot it. c Generate 10 different realizations of , and compute the corresponding sample autocorrelation sequences , and . Compute the average autocorrelation sequence as and the corresponding periodogram for . d Compute and plot the average periodogram using the Bartlett method. e Comment on the results in parts (a) through (d).
标签: zero-mean Generate sequence variance
上传时间: 2016-03-04
上传用户:朗朗乾坤
编写简单的加密程序它把一个文件的所有字母按下列规律进行 换,非字母的字符保持不变。文本可以自行创建,文件名可以自定 转换规律:‘A’→‘Z’,‘B’→‘Y’,• •
上传时间: 2016-03-23
上传用户:ouyangtongze
Swfdec still is development software, but has also followed a rigid no-crashes-allowed policy. I believe it s stable enough now to be installed as a default plugin for people that can live with occasional crashes of their browser. But don t blame me if it does crash. File a bug at https://bugs.freedesktop.org/enter_bug.cgi?product=swfdec
标签: no-crashes-allowed development followed software
上传时间: 2016-04-14
上传用户:franktu
1) Write a function reverse(A) which takes a matrix A of arbitrary dimensions as input and returns a matrix B consisting of the columns of A in reverse order. Thus for example, if A = 1 2 3 then B = 3 2 1 4 5 6 6 5 4 7 8 9 9 8 7 Write a main program to call reverse(A) for the matrix A = magic(5). Print to the screen both A and reverse(A). 2) Write a program which accepts an input k from the keyboard, and which prints out the smallest fibonacci number that is at least as large as k. The program should also print out its position in the fibonacci sequence. Here is a sample of input and output: Enter k>0: 100 144 is the smallest fibonacci number greater than or equal to 100. It is the 12th fibonacci number.
标签: dimensions arbitrary function reverse
上传时间: 2016-04-16
上传用户:waitingfy
电源:稳压的+5V电源,电流小于300mA。 视频输入:RGB+HSYNC+VSYNC信号,取自VGA卡,刷新率与NTSC标准兼容。 视频输出:混合视频和S-视频(Y/C)。 支持的视频标准:PAL B、G、H和NTSCM。 电路要求VGA卡能发送与PAL或NTSC标准视频时序兼容的RGB格式视频信号。
上传时间: 2014-11-22
上传用户:zhuyibin
输入四个点,判断此四点是否可形成一个平行四边形。 程序中描述了一个抽象数据类型Vector2D,表示一个向量。具有(x,y)两个值。其本身具有减另一个向量(minus(Vector2D)),判断自身是否为零向量(iszero()),与另一个向量对应值y,x乘积之差(inner(Vector2D))。由于两个向量平行,则乘积之差x1*y2-x2*y1=0。点A,B,C,D四点组成平行四边形的条件是AB//CD,BC//DA且各个向量皆不为零向量。 首先声明四个向量。向量i获得值的方法是由getPoint(int i)获得。然后根据Vector2D重载后的toString()函数将各个向量输出查看。最后判断此四点是否可组成平行四边行。
标签: 输入
上传时间: 2016-04-30
上传用户:qq521
System.out.print(s) System.out.println(t) System.out.print(u) System.out.println(v) System.out.print(a) System.out.print(b) System.out.print(c) System.out.println(d) x=0x5f20 y=0x5f35 z=0xffff System.out.print(x) System.out.print(y) System.out.println(z)
上传时间: 2016-07-01
上传用户:日光微澜