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### Re^3: Regarding the polynomial evaluation. Stuck at one part. please helpppp!!

by tmharish (Friar)
 on Jan 22, 2013 at 15:09 UTC ( #1014687=note: print w/ replies, xml ) Need Help??

You are missing a bracket:

-0.137 + (0.00479 / (W/0.9)) + (2.5593 * (W/0.9 ) ,0.045,0 -0.137 + (0.00479 / (W/0.9)) + (2.5593 * (W/0.9 ) <---- HERE ,0.045,0

I still dont understand how this works - but it does!

Update: Including testing code that ( I am not sure how ) works!

use strict ; use warnings ; sub EvalPolynominal{ #first parameter gives the polynominal string #second parameter gives the min-des width #third parameter gives the short-line length my \$polynominal=shift; my \$curWidth=shift; my \$curLength=shift; \$polynominal =~ s/W/\$curWidth/g ;#replace W with current value of ++min width \$polynominal =~ s/L/\$curLength/g ;#replace L with current value of ++ min Length my \$result ; eval( \$result = \$polynominal ) ; # print "\$result\n"; -- PRINTS THE STRING return eval (\$polynominal); # Returns '0.086765' - WHY? } my \$one = EvalPolynominal( '-0.137 + (0.00479 / (W/0.9)) + (2.5593 * ( +W/0.9 ))' ,0.045,0 ); print "\$one\n";
Comment on Re^3: Regarding the polynomial evaluation. Stuck at one part. please helpppp!!
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Re^4: Regarding the polynomial evaluation. Stuck at one part. please helpppp!!
by freekngeek (Acolyte) on Jan 22, 2013 at 15:47 UTC

Thanks a lot man, It worked. So stupid of me, couldn't see that thing. I was missing a bracket. Your code worked because of the 2 brackets at the end of the equation and I was missing that one. It happened when I parsed the text into the array and I did something wrong. Thanks again

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