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Operating Systems OS X (Apple) A fixed point basic calculator for DASH. Post 303027240 by wisecracker on Wednesday 12th of December 2018 08:28:05 AM
Old 12-12-2018
Hi Corona688...

This edge case works on my version...
I have limited my decimal point to 9 decimal places BUT note the non-zero digits start at the 10th decimal place:
Code:
Last login: Wed Dec 12 06:48:08 on console
AMIGA:amiga~> cd Desktop/Code/Shell
AMIGA:amiga~/Desktop/Code/Shell> ./calc .000000000123 + .0000000007
+0.000000001
AMIGA:amiga~/Desktop/Code/Shell> ./calc .000000000923 + .000000000739
+0.000000002
AMIGA:amiga~/Desktop/Code/Shell> ./calc .000000000123 + .000000000123
+0.000000000
AMIGA:amiga~/Desktop/Code/Shell> _

I have certainly discovered that it is more difficult than I expected. There is at least one division edge case that is not straightforwards.
As I stated before python 2.x or 3.x was my friend here...
But yours in 'bash' gives...
I have changed 'AA' and 'BB' to:
Code:
AA=0.000945
BB=0.000789

There are other edge cases.
Ignoring the divide case as that is an edge case in itself and is different from the one mentioned above.
Code:
Last login: Wed Dec 12 13:02:10 on ttys000
AMIGA:amiga~> cd Desktop/Code/Shell
AMIGA:amiga~/Desktop/Code/Shell> ./FPMATH_C688.sh
0.000945 * 0.000789 = 0.000
./FPMATH_C688.sh: line 54: (A*MOD)/B : division by 0 (error token is " ")
0.000945 / 0.000789 = 
0.000789 - 0.000945 = 0.000
0.000945 - 0.000789 = 0.000
0.000945 + 0.000789 = 0.000
AMIGA:amiga~/Desktop/Code/Shell> _

This is getting more difficult by the version.

--- Post updated at 01:28 PM ---

Hi C688...
Your mandlebrot probably won't work on the AMIGA, period, as there is no bash for it, only ksh88.
Nevertheless it looks cool.
Off to try it out on this machine...
OSX 10.14.1, default bash terminal.
I'll be back to let you know...

Last edited by wisecracker; 12-12-2018 at 09:59 AM.. Reason: Move one text line further down.
 

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wstring(3C)						   Standard C Library Functions 					       wstring(3C)

NAME
wstring, wscasecmp, wsncasecmp, wsdup, wscol - Process Code string operations SYNOPSIS
#include <widec.h> int wscasecmp(const wchar_t *s1, const wchar_t *s2); int wsncasecmp(const wchar_t *s1, const wchar_t *s2, int n); wchar_t *wsdup(const wchar_t *s); int wscol(const wchar_t *s); DESCRIPTION
These functions operate on Process Code strings terminated by wchar_t null characters. During appending or copying, these routines do not check for an overflow condition of the receiving string. In the following, s, s1, and s2 point to Process Code strings terminated by a wchar_t null. wscasecmp(), wsncasecmp() The wscasecmp() function compares its arguments, ignoring case, and returns an integer greater than, equal to, or less than 0, depending upon whether s1 is lexicographically greater than, equal to, or less than s2. It makes the same comparison but compares at most n Process Code characters. The four Extended Unix Code (EUC) codesets are ordered from lowest to highest as 0, 2, 3, 1 when characters from different codesets are compared. wsdup() The wsdup() function returns a pointer to a new Process Code string, which is a duplicate of the string pointed to by s. The space for the new string is obtained using malloc(3C). If the new string cannot be created, a null pointer is returned. wscol() The wscol() function returns the screen display width (in columns) of the Process Code string s. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------------------------------------+ |ATTRIBUTE TYPE ATTRIBUTE VALUE | |MT-Level MT-Safe | +-----------------------------------------------------------+ SEE ALSO
malloc(3C), string(3C), wcstring(3C), attributes(5) SunOS 5.11 29 Dec 1996 wstring(3C)
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