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  1. POExponent not working normally
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    copied!<p>I am working in python 2.6. Can anyone figure out why my variable squared does not calculate properly when it is inside a min() function? To illustrate, I show the variable**2 performed by itself, works fine. Here is the code, followed by some results:</p> <pre><code>from __future__ import with_statement import csv, re, time timestr = time.strftime("%Y%m%d_%H%M%S") fileinput = 'mp_20130822.csv' out = open('output2.csv',"wb") writer = csv.writer(out, delimiter = ',') ESPmax = 100.00 dynmax = "enabled" def config(): global argument if z&gt;30: argument = "T" else: argument = "F" with open(fileinput,'rU') as inputfile: reader = csv.reader(inputfile, delimiter = ';') for line in reader: line = re.split(",| ",line[0]) side = str(line[4]) #is "Bid" or "Ask" e = float(line[5]) z = float(line[6]) t = float(line[33]) FW = float(line[34]) FS = max(float(line[35]),200) if FW == 0: continue if (FS == 0) or (FS == 1): continue if side == "Ask": LE = t-e else: LE = e-t LEP = LE/(FW/2) ESP = z/(FS/2) if dynmax == "enabled": ESPmax = min(LEP**2,ESPmax) config() if (argument == "T"): print ('side, e, z, t, FW, FS') print ('LEP,LEP,ESPmax') print (side, '%.2f'%e, '%.2f'%z, '%.2f'%t, '%.2f'%FW, '%.2f'%FS) print ('%.3f'%LEP,'%.3f'%LEP,'%.5f'%ESPmax) print '%.5f'%(LEP*LEP) </code></pre> <p>RESULTS:</p> <pre><code>side, e, z, t, FW, FS LEP,LEP,ESPmax ('Ask', '1.90', '50.00', '1.95', '0.24', '651.00') ('0.423', '0.423', '0.00130') 0.17880 side, e, z, t, FW, FS LEP,LEP,ESPmax ('Ask', '8.40', '40.00', '8.43', '0.17', '4933.00') ('0.348', '0.348', '0.00130') 0.12145 side, e, z, t, FW, FS LEP,LEP,ESPmax ('Ask', '8.40', '40.00', '8.43', '0.17', '4919.00') ('0.370', '0.370', '0.00130') 0.13667 </code></pre>
 

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