This tutorial takes you through features of LISP Programming language by simple and practical approach of learning. Audience This reference has been prepared for the beginners to help them understand the basic to advanced concepts related to LISP Programming language. Prerequisites Before you start doing...
vla-xx,vlax-xx就记得去查Visual lisp函数,此处按下不表 obj2 (vlax-ename->vla-object ent) ) (setq interpt (vlax-invoke obj1 'intersectwith obj2 0)) (setq pt1 (vlax-curve-getClosestPointTo obj1 pt10 t) pt2 (vlax-curve-getClosestPointTo obj1 pt11 ...
Lisp的字面意思就是表处理(list processing), 其实也可以称为树 处理, 这和处理XML节点没有什么不同。 经受这一番折磨以后, 现在我们终于相当接近Lisp了, Lisp的括号的神秘本质(就像许多 Lisp狂热分子认为的)逐渐显现出来。现在我们继续研究其他内容。 重新审视C语言的宏 到了这里, 对XML的讨论你大概都听累了, ...
Earlier, I said, "Anything you type at the ':' command prompt is available with the command function." I now place emphasis on the word "type." The command function breaks down completely when it comes to dialog boxes. That's right: any command that uses a dialog box won't work ...
无疑列表(list)也是一种。上过编译课 吧? 还模模糊糊记得一点吧? 源代码在解析之后也是用树结构来存放的, 任何编译程序都 会把源代码解析成一棵抽象语法树, 这样的表示法很恰当, 因为源代码就是层次结构的: 函数包含参数和代码块, 代码快包含表达式和语句, 语句包含变量和运算符等等。 我们已经知道, 任何树...
In a Web-based tutorial on Lisp Robert Strandh of the University of Bordeaux7 expands upon the common observation that students (and indeed others) are often inefficient in their work. Instead of learning how to use tools properly, they flail ineffectively with what they already know. He ...
(list pt txt zg) lst) ;将点坐标、内容、字高组成表 ss (ssdel entnam ss) ;选择集中删除当前的文字对象 ) ) (setq lst (vl-sort lst (function (lambda (e1 e2) (if (equal (cadr (car e1)) (cadr (car e2)) 1e-4) (> (car (car e1)) (car (car e2))) (< (cadr (car e1))...
Make sure you are comfortable with FNN Tutorial before reading this.(cl:defpackage :mgl-example-sum-sign-rnn (:use #:common-lisp #:mgl)) (in-package :mgl-example-sum-sign-rnn) ;;; There is a single input at each time step... (defparameter *n-inputs* 1) ;;; and we want to ...
I think there’s room for some documentation or tutorial on the system-oriented, REPL-workbench style of Common Lisp development that I like to use. I want to write more documentation for Quicklisp, particularly how users can publish their own software for it or customize it via its internal...
types. And even ifaandbare integers--the case you care about--then the addition routine has to account for the possibility that the result may be too large to represent as afixnum, a number that can be represented in a single machine word, and thus it may have to allocate abignumobject...