Serioulsy puzzled here. Post: 302981543

Sponsored Content

Top Forums Programming Serioulsy puzzled here. Post 302981543 by wisecracker on Wednesday 14th of September 2016 01:19:02 PM

09-14-2016

Registered User

Serioulsy puzzled here.

Facebook had a mathematics problem which was as thus:-

6/2(1+2) = ?

Answer is 9.

My ancient Casio FX 730P mini computer written exactly as that gives 'error' only.

Now take a look at shell versions, and a python version:-

Code:

Last login: Wed Sep 14 18:04:04 on ttys000
AMIGA:barrywalker~> echo "$(( 6/2(1+2) ))"
-bash: 6/2(1+2) : syntax error in expression (error token is "(1+2) ")
AMIGA:barrywalker~> echo "$(( 6/2*(1+2) ))"
9
AMIGA:barrywalker~> echo "6/2(1+2)" | bc
(standard_in) 1: parse error
AMIGA:barrywalker~> echo "6/2*(1+2)" | bc
9
AMIGA:barrywalker~> python
Python 2.7.10 (default, Oct 23 2015, 19:19:21) 
[GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.59.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> print 6/2(1+2)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'int' object is not callable
>>> print 6/2*(1+2)
9
>>> exit()
AMIGA:barrywalker~> _

Are these bugs or is it mandatory in at least these two languages here to have the multiplication operator?

Last edited by wisecracker; 09-14-2016 at 02:27 PM.. Reason: Added the answer.

wisecracker

View Public Profile for wisecracker

Find all posts by wisecracker

6 More Discussions You Might Find Interesting

1. Programming

Puzzled with user ID.

I hava been reading AUPE these days. I really am puzzled with the presentation of real user(group) ID, effective user(group) ID. How do they effect on the execution of process? What's the relationship between them? Appreciate your help.

2. Programming

C++ Puzzled !!

#include <iostream.h> class A { public: void f(void) { cout << "hello world \n" ; } }; void main() { A *a; a = 0 ; a->f(); // OOPs...Am I mad? What am I going to do ? }

3. Solaris

puzzled with VxVM and iostat..

Hi all, One disk on my root disk group failed in Veritas Volume manager. I replaced it with new one, initialized it and placed it with removed one. it Synchronized plexes and everything is fine. this node was second standby node of Sun cluster. yesterday I had failure on active node with boot...

4. Solaris

Puzzled over over the relationship between the partition and geometry of hard disk.

Not sure why solaris couldn't detect the geometry of a hard disk which has a working OS of winxp pro. Is it due to the different OS that the partition information is stored in different location? When I type '"format" it is shown as below, c3d1 < drive type unknown>...

5. Shell Programming and Scripting

Puzzled with hexdump, hd and ln

How to create a symbolic link to a command with certain argument? When I man hexdump, it is said in the man page that "-C Canonical hex+ASCII display...Calling the command hd implies this option". Actually it is. hd equals to hexdump -C. And then I examined the ln command but find it is a...

6. OS X (Apple)

Puzzled by Find

I'm new to playing with the command line on OS X and am puzzled by the response I am getting from the find command. I have a file structure similar to the following /Volumes/ ../Drobo/ ../../Pictures/ ../../../Image 1/ ../../../../Image 1.jpg ../../../../Previews/ ../../../../../Image...

LEARN ABOUT SUNOS

print

print(1)							   User Commands							  print(1)

NAME

       print - shell built-in function to output characters to the screen or window

SYNOPSIS

   ksh
       print [ -Rnprsu [n]] [arg...]

DESCRIPTION

   ksh
       The shell output mechanism. With no flags or with flag - or -, the arguments are printed on standard output as described by echo(1).

OPTIONS

       The following options are supported:

       -n	       suppresses new-line from being added to the output.

       -R

       -r	       (raw  mode) ignore the escape conventions of echo. The -R option will print all subsequent arguments and options other than
		       -n.

       -p	       causes the arguments to be written onto the pipe of the process spawned with |& instead of standard output.

       -s	       causes the arguments to be written onto the history file instead of standard output.

       -u [ n ]        flag can be used to specify a one digit file descriptor unit number n on which the output will be placed. The default is 1.

EXIT STATUS

       The following exit values are returned:

       0	Successful operation.

       >0	Output file is not open for writing.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       echo(1), ksh(1), attributes(5)

SunOS 5.10							    15 Apr 1994 							  print(1)