Jerome Fine replies: For those individuals who like to use TECO, the following file (PI.TEC) was sent to me in 1998 by Nicholas Zymaris: GZ0J\UNQN"E 40UN ' BUH BUV HK QN< J BUQ QN*10/3UI QI< \+2*10+(QQ*QI)UA B L K QI*2-1UJ QA/QJUQ QA-(QQ*QJ)-2\ 10 at I// -1%I > QQ/10UT QH+QT+48UW QW-58"E 48UW %V ' QV"N QV^T ' QWUV QQ-(QT*10)UH > QV^T @^A/ /HKEX$$ The last two characters are <ESC> not dollar signs!!!!!!! Under RT-11, enter the command: MUNG PI.TEC nn The default "nn" is 40. As far as I can understand, the result is truncated after "nn" digits. However, checking the values shows a problem between 50 and 51 digits. If anyone is able to use this file and check the values, it would be appreciated if you could verify for 100 digits. Also, eventually, it would be interesting to figure out the multi-precision decimal evaluation algorithm. If you can print out the value for both hex and decimal, that would also help! Sincerely yours, Jerome Fine -- If you attempted to send a reply and the original e-mail address has been discontinued due a high volume of junk e-mail, then the semi-permanent e-mail address can be obtained by replacing the four characters preceding the 'at' with the four digits of the current year.