BC PROGRAMMING LANGUAGE NUMBER THEORY PROGRAMS

BC number theory programs

BC - an arbitrary precison desk-calcuator language
Robert Morris died on 26th June 2011 (Robert Morris and Lorinda Cherry created the BC exact arithmetic programming language)
Download site for "Fossies" - the Fresh Open Source Software Archive Contents of bc-1.07.1.tar.gz
BC manual
List of bc programs written by Keith Matthews
BC has been included in PHP as BCMATH and in this form can produce nice HTML output.
Many of my BC programs have been converted to BCMATH programs.
Formatting the output in BC in oneline (Stack Overflow)
Download site for my bc programs: (gzipped tar version)
Updates

BC (version 1.07.1) (see the manual) is a programming language that supports arbitrary precision integer arithmetic calculations with interactive execution of statements. It is an idiosyncratic programming language which closely resembles parts of the C language. While it is somewhat slow for some purposes (all code is executed as it is read), the author has found bc very useful in teaching and research. The code is very easy to read and students can see directly how an algorithm has been implemented. It is also useful as a template for harder-to-write, but faster C code.

Bugs and idiosyncrasies:

When using the if-else construction, insert a "\", as follows:

          if(expression){statement1}\
          else{ statement2}

Alternatively, as pointed out by Anton Stiglic, use the construction

          if(expression){
               statement1
          }else{
               statement2
          }

The continue statement only works for for loops.
Alan Offer pointed out that f(*b[]) changes the array values.
January 27, 2020. I found that the BC 1.06.95 command
bc bigu stoltvialmm squareroot
produced an error message:
squareroot 667: Assignment of a void expression
However on changing the order of files to
bc squareroot bigu stoltvialmm
there was no problem! This phenomenon is not present in bc 1.07.1.
Also see Pádraig Brady's example.

http://www.numbertheory.org/keith.html

Last modified February 3, 2020