LispForum

Hello there, I cannot figure out how to update variable s when clicking button "Sum" (in-package :ltk) (defun string-to-number (n) (car (list (read-from-string n)))) (defun sum (a b) (+ (string-to-number a) (string-to-number b))) (defvar s) (setq s 0) (defun ltksum() (with-ltk () (let* ((b...

Hello there, Problem with string solved and successfully. (in-package "CL-USER") (defun window (&KEY (INTERPRETER CLTCL:*INTERPRETER*) OPTIONS) "Runs the Common Lisp window." (cltcl:event-loop (viewer) :interpreter interpreter :options options)) (defun viewer () #TCL[ package...

Hello there Today I try cltkl, looks fine when you run following code (in-package "CL-USER") (defun window (&KEY (INTERPRETER CLTCL:*INTERPRETER*) OPTIONS) "Runs the Common Lisp window." (cltcl:event-loop (viewer) :interpreter interpreter :options options)) (defun viewer () #...

I need to check length of rod from four-link mechanism kinematic analysis, so I need 2D. And I assume I need functions to deal with angles of movement of crank and rocker arm. So to speak.

Hello there

Does anybody knows of a library in lisp to deal with cartesian coordinates system?

Regards,