mec@sandstorm.Berkeley.EDU (Michael Chastain) (02/10/91)
Archive-name: symbolic-math/msdos/ccalc/1991-02-10 Archive: wuarchive.wustl.edu:/mirrors/msdos/calculator/ccalc.zip [128.252.135.4] Original-posting-by: mec@sandstorm.Berkeley.EDU (Michael Chastain) Original-subject: Re: wanted: public domain symbolic manipul for ibmpc Reposted-by: emv@ox.com (Edward Vielmetti) In article <2449@bnlux0.bnl.gov> kyee@bnlux0.bnl.gov (kenton yee) writes: >i want to get a public domain symbolic manipulation program >for an ibmpc clone with 1 megabyte ram; TeX output or >fancy graphics are not necessary. Get this program from wsmr-simtel20.army.mil or the wuarchive.wustl.edu: Directory PD1:<MSDOS.CALCULATOR> Filename Type Length Date Description ============================================== CCALC.ZIP B 195934 900917 The Calculus Calculator (w/graphs, more) This is not public domain, but it is shareware. A $25 donation to San Francisco State University, Applied Mathematics Fund, is requested (but not required). I have been using this program for almost a year now and it is just a piece of pie. It does symbolic algebra, symbolic differentiation, and numerical integration. It handles lists and has a programming facility. It's not as nice as Mathematica, but it doesn't cost $1000 either. Here's an example of some Calculus Calculator input: f(x,n) = sin ( n * x ) g(x,n) = sum( f(x, i), i = 1 to n ) / n window( -pi, +pi, -1, 1 ) graph( g(x,10), x ) Change the second line to "sum( f(x, i) * c(i), i = 1 to n ) / n", and you are into do-it-yourself Fourier analysis. And, of course, you can write functions and procedures to use CC's primitives to make more complicated mathematical functions. This example doesn't show off the symbolic capabilities very well, but they're there. Go ftp the program and try it! Michael Chastain mec@ocf.berkeley.edu "He who dies with the most FRIENDS wins." a^n + b^n != c^n, n > 2. First, note that a^n = (c-b)*(c^n-1 + ... + b^n-1), pnews: .signature truncated to four lines