求標準偏差
> function c=myfunction(x)
> [m,n]=size(x)
> t=0
> for i=1:numel(x)
> t=t+x(i)*x(i)
> end
> c=sqrt(t/(m*n-1))
function c=myfunction(x)
[m,n]=size(x)
t=0
for i=1:m
for j=1:n
t=t+x(i,j)*x(i,j)
end
end
c=sqrt(t/(m*n-1
J T AG 接口插座與DSP芯片的距離:為了保證JTAG信號不受干擾,需
要注意兩者之間的距離不超過六英寸(15甲24厘米),超過這個距離,就需要在中
間加緩沖芯片。本設計中使用了244作為緩沖芯片,但其原因不是由于器件之間
距離過長,而是考慮到仿真器工作在5V電壓,DSP引腳為3.3V,為了電平兼容
性而進行的電壓轉換功能。
T-kernel 的extension源代碼,是日本最著名的T-kernel所獨有的,適合開發T-kernel的朋友們使用!
TK/SE is the program that extends T-Kernel and provides the functions such as a file system and a process management.
The TK/SE archive to be provided is comprised of the main portion and the 2 extended file system portions, and TK/SE object is built by adding these to T-Kernel source.
a) tkernel_se_1.00.00.tar.gz Main source of T-Kernel/SE
b) extfs_fatfs_1.00.00.tar.gz Difference source of T-Kernel/SE extended file system (FAT)
c) extfs_cdrom_1.00.00.tar.gz Difference source of T-Kernel/SE extended file system (CD-ROM)
替代加密:
A B C D E F G H I J K L M N O P Q R S T U V W 密文
Y Z D M R N H X J L I O Q U W A C B E G F K P 明文
X Y Z
T S V
I HAVE A DREAM!#
密文??
用ARM編程實現替代加密。
三星公司官方 GIVEIO.SYS源代碼下載。
In windows NT/2000/XP, any application can’t access the I/O such as the parallel port. So, GIVEIO.SYS enables
SJF.exe to access the parallel port without any memory fault. In windows 95/98, GIVEIO.SYS isn’t needed.