########################################################## #

hi, I am new to perl and am trying to build a grade # #calculator.I have gone through the code for hours and am# #stuck. can some one point me in the right direction? it # #looks to me like it should be running.

########################################################## #

located in = /var/www/htdocs/index.html

########################################################### 
<html>
<head></head>
<form action=/cgi-bin/math4.cgi method=post>

<center>
<h1>Grade Calculator</h1>
task1:<input type=text name=g1 maxlength=3 size=3><br>
task2:<input type=text name=g2 maxlength=3 size=3><br>
task3:<input type=text name=g3 maxlength=3 size=3><br>
task4:<input type=text name=g4 maxlength=3 size=3><br><br>
<h1>How to's</h1> <br>
0<input type=radio value=0 name=g5><br>
25<input type=radio value=25 name=g5><br>
50<input type=radio value=50 name=g5><br>
75<input type=radio value=75 name=g5><br>
100<input type=radio value=100 name=g5><br>



<h1> Attitude</h1>
<select name=g6>
<option>0</option>
<option>25</option>
<option>50</option>
<option>75</option>
<option>100</option>
</select><br><br>
<br><input type=reset><br>
<input type=submit>

</center>
</body>
</form>
</html>

[download]
############################################################ #

located var\www\cig-bin\math4.cgi|chmod 755 math4.cgi

########################################################### 
#!/usr/bin/perl
use CGI ':standard';

$g1=param('g1');
$g2=param('g2');
$g3=param('g3');
$g4=param('g4');
$g5=param('g5');
$g6=param('g6');
$letter;
$average;
$div;

$total=($g1 + $g2 + $g3 + $g4 + $g5 + $g6);


sub div{

if($g1 ne ''){$div++;}
if($g2 ne ''){$div++;}
if($g3 ne ''){$div++;}
if($g4 ne ''){$div++;}
if($g5 ne ''){$div++;}
if($g6 ne ''){$div++;}





       }


$average=($g1 + $g2 + $g3 + $g4 + $g5 + $g6) / $div;

sub letter{

if ($average > 100) {print "illegal average, check your grades";}

if($average > 92.5){$letter="A";
}
elsif($average > 89.5){$letter="A-";
}
elsif($average > 87.5){$letter="B+";
}
elsif($average > 82.5){$letter="B";
}
elsif($average > 79.5){$letter="B-";
}
elsif($average > 76.5){$letter="C+";
}
elsif($average > 72.5){$letter="C";
}
elsif($average > 69.5){$letter="C-";
}
elsif($average > 66.5){$letter="D+";
}
elsif($average > 62.5){$letter="D";
}
elsif($average < 62.4){$letter="F";
}
print "    <li>    the letter grade is $letter <br />

";





      }

[download]
############################################################ #

sorry if this post is to big or asked incorrectly I am #still learning. #I ran the math4.cgi through shell console and no errors #came up except that dividing by zero was an illegal #command.when I run localhost through fire fox the html #works but I get the ocal server error screen and it says it #can't find math4.cgi in the cgi-bin directory. #any help is appreciated.

###########################################################

In reply to grade calulator coding problem by friar tux

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