Perl program get a response before the program quits
I created a program, so a kid can practice there math on it. It dispenses varies math problems and the kid must input an answer. I also want it to grade the work they have done, but I can't find the best place for it to print out the grade.
I have:
I want to insert
but I do not know how to insert it into what I already have
why does below program not work?
<> is producing nothing.. still waiting for input.. but i thought this would work?
#!/usr/bin/perl -w
use strict;
my @array2;
my @array1 = ("David Veterinarian 56", "Jackie Ass 34", "Karen Veterinarian 28");
$_ = @array1;
while (<>) {
... (4 Replies)
Hi,
i want to write a script that executes a program (exec?) .
this program then requires a filename as input.
how do i give it this input in the script so the program will be complete run and close by the script.
e.g.
exec prog.exe
program then asks for filename
"enter filename:"... (1 Reply)
I wish to write a Perl program that will provide a listing of files in a directory. The files must be listed in sorted order by the file name.
• By default, the program displays only file names.
• By default, the program lists the files in the current directory.
• The program must provide the... (2 Replies)
could i get any help with how to link this program together. i dont know what to put where the X's are
print `flush`;
thank(); #print thank header
use Getopt::Std; # use declaration with the options function
getopts("ld:") or usage() and exit; ... (3 Replies)
Long story short: I'm working inside of a Unix SSH under a bash shell. I have to code a C program that generates a random number. Then I have to call the compiled C program with a Perl program to run the C program 20 times and put all the generated random #s into a text file, then print that text... (1 Reply)
how would you exit out of a programm correctly, without having for the program to crash?
for example
print "Enter quit";
$input = <STDIN>;
if ($input eq "quit")
{
{QUIT THE PROGRAM}
}
else
{
print "invalid input";
}
one more thing, how do u exit a program "correctly", if... (3 Replies)
Hi
I am new to perl, i need to write a program to convert horizontal words to vertical
eg: cat, dog, cow,.....(text file)
this should be written as
1.cat
2.dog
like this. can u pls help me to work out.. (4 Replies)
I want to traverse a durectory for a particular file. Situataion is like this. Path is ABC/a/c/g. it has around 100 folders in it.
Search a directory which has word "*latest*" in its path.
and then from the latest go through z/x/c to file final.html.
In total, i want it to go through... (4 Replies)
can anyone help me out to write a code by connecting to the sql database and I need to print the list of tables present in the databse.
any ideas please. (1 Reply)
I have this math program on Perl and when I run it one of the math problems that comes up is 0/0 and perl makes the answer 4. How can I program perl to not include numbers /0?
What I have for the division portion is:
$solution = $num1 * $num2;
($solution, $num1) = ($num1, $solution);
$question... (2 Replies)
Discussion started by: germany1517
2 Replies
LEARN ABOUT REDHAT
math
math(n) Tcl Math Library math(n)
NAME
math - Tcl Math Library
SYNOPSIS
package require Tcl 8.2
package require math ?1.2?
::math::cov value value ?value ...?
::math::integrate list of xy value pairs
::math::fibonacci n
::math::max value ?value ...?
::math::mean value ?value ...?
::math::min value ?value ...?
::math::prod value ?value ...?
::math::random ?value1? ?value2?
::math::sigma value value ?value ...?
::math::stats value value ?value ...?
::math::sum value ?value ...?
DESCRIPTION
The math package provides utility math functions.
COMMANDS
::math::cov value value ?value ...?
Return the coefficient of variation expressed as percent of two or more numeric values.
::math::integrate list of xy value pairs
Return the area under a "curve" defined by a set of x,y pairs and the error bound as a list.
::math::fibonacci n
Return the n'th Fibonacci number.
::math::max value ?value ...?
Return the maximum of one or more numeric values.
::math::mean value ?value ...?
Return the mean, or "average" of one or more numeric values.
::math::min value ?value ...?
Return the minimum of one or more numeric values.
::math::prod value ?value ...?
Return the product of one or more numeric values.
::math::random ?value1? ?value2?
Return a random number. If no arguments are given, the number is a floating point value between 0 and 1. If one argument is given,
the number is an integer value between 0 and value1. If two arguments are given, the number is an integer value between value1 and
value2.
::math::sigma value value ?value ...?
Return the population standard deviation of two or more numeric values.
::math::stats value value ?value ...?
Return the mean, standard deviation, and coefficient of variation as percent as a list.
::math::sum value ?value ...?
Return the sum of one or more numeric values.
KEYWORDS
math, statistics
math 4.2 math(n)