Connecting to Scilab on the command line.
在命令行连接到scilab。
Scilab includes many math functions and is very good for signal processing.
Scilab包括了很多数学函数，因此非常适合进行信号处理。
In the Scilab code in Listing 4, an example graph is printed to a JPEG file.
在清单4的Scilab代码内，一个示例图形被打印到一个JPEG文件。
Scilab comes with a rather useful GUI you can easily put Scilab script into.
scilab自带一个非常有用的GUI，您可轻松将scilab脚本放入其中。
For details on using Scilab on the Windows command line, see the Scilab Web site.
对于如何在Windows命令行使用Scilab的细节，请参见scilab网站。
E - the next item on the line is an expression that the Scilab engine must execute.
e—此行的下一项是Scilab引擎必须执行的一个表达式。
This article showed how to connect to Scilab easily using PHP from the command line.
本文展示了如何使用php从命令行连接到Scilab。
This functionality makes Scilab incredibly powerful and can be used within your Web application.
该功能使得Scilab极为强大并可被用于Web应用程序。
Scilab is a free scientific software package for numerical computation and graphical visualization.
Scilab是一个用来进行数值计算和图形可视化呈现的免费科学软件包。
When Scilab is started, a window displays allowing you to interact with the interpreter (see Figure 5).
在启动Scilab之后，就会显示一个窗口让我们可以与之进行交互(如图5所示)。
There are a few ways you can try to bridge the gap between the seemingly disparate systems of PHP and Scilab.
连接看似截然不同的两个系统php和scilab有几种方式可选。
So far, you have a reasonably powerful application, but it's not terribly different from using the Scilab interface.
至此，我们已经得到了一个功能比较强大的应用程序，但它与使用Scilab界面没有特别大的差异。
If it is, the code simply takes the Scilab code from the form and sends it through to Scilab using the exec command.
如果是，代码就只简单地将表单的Scilab代码通过exec命令发送至Scilab。
Scilab is a kind of mathematical algorithm language, but it will also seem familiar to the average computer programmer.
Scilab是一种数学算法语言，但一般的计算机程序员对它也不陌生。
Scilab is an interpreter and a high-level language for engineering and scientific applications that is in use around the world.
Scilab是世界上广泛存在的工程和科学应用程序所使用的一种解释器和高级语言。
You use the exec function to send a command to the operating system. This command calls Scilab, just as you saw in the previous section
使用exec函数来向操作系统发送命令。
Scilab is a numerical computational package developed in 1990 by researchers from the INRIA and the cole nationale des ponts et chausses (ENPC).
Scilab是一个数值计算软件包，由来自INRIA和ENPC (Ecolenationaledespontset chausses)的研究人员在1990年开发。
At this site, you'll find the latest version of Scilab, as well as documentation and other user information (such as how to contribute to the project).
在这个站点上，可以找到Scilab的最新版本以及文档和其他用户的信息(例如如何为这个项目贡献自己的力量)。
As it is being sent to Scilab from the command line, you must clean up newlines by deleting them (or, more accurately, replacing them with empty strings).
因它是从命令行被发送到Scilab，所以必须要通过删除它们(或者更为准确地说，用空字符串来代替它们)来清理换行。
So, instead of using the nwni flag on the command line, you use nw, which still limits Scilab to command-line calculations, but loads the graphics libraries.
所以，与在命令行上使用nwni标志不同，我们现在使用的是 nw，它仍旧限制Scilab 为命令行计算，但是加载图形库。
The first example using PHP sends the simple Scilab command built in the previous section, which simply prints out a matrix to the screen in plain-text format.
第一个例子使用PHP发送在前一节中构建的简单scilab命令，以纯文本的格式向屏幕打印一个矩阵。
Scilab provides simple matrix operations like multiplication, plus a library of high-level operations like complex multi-dimensional arithmetic and correlation.
Scilab提供了简单的矩阵运算（比如乘法），也提供了高级运算库（比如复数多维算法和相关）。
Within this form are two elements: a text area provided to allow users to enter plain Scilab code for execution and a Submit button that performs the form action.
此表单内有两个元素：一个文本区域用来供用户输入scilab代码以便执行；一个Submit按钮用来执行表单动作。
Therefore, the next task is to provide some kind of graphical interface in XHTML and PHP, which you can do by adding useful forms to generate powerful Scilab expressions.
因而，下一个任务是用XHTML和PHP提供某种图形界面，为了实现这个目的，可以添加有用的表单来生成功能强大的scilab表达式。
As the Scilab code is put into the exec function, the exit command is concatenated to the end of it so you don't have to rely on the user to input the word exit each time.
由于Scilab代码被放入exec函数，exit命令遂被串接到其尾端，这样一来，就无需依赖用户每次输入exit。
Scilab includes a large number of libraries and functions that can generate plots with a minimum of complexity. Take the example of generating a simple three-dimensional histogram plot.
Scilab中包括很多库和函数，它们可以使用最少的复杂性来绘制图形。
Scilab originated in 1994 and was developed by researchers at Institut national de recherche en informatique et en automatique (INRIA) and École Nationale des Ponts et Chaussées (ENPC) in France.
Scilab 诞生于 1994 年，它是由法国的 INRIA（Institutnationalderechercheeninformatiqueet enautomatique）和ENPC（ÉcoleNationaledesPonts et Chaussées）设计的。
However, you can also use Scilab from the command line, which is what you must do to get your Web-based system working later. You end up with the following rather complicated command-line operation.
不过，您也可以从命令行使用Scilab，并且为了在稍后能让基于Web的系统工作，您也必须要这么做。
However, you can also use Scilab from the command line, which is what you must do to get your Web-based system working later. You end up with the following rather complicated command-line operation.
不过，您也可以从命令行使用Scilab，并且为了在稍后能让基于Web的系统工作，您也必须要这么做。
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