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POprecision of number held in a variable
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copied!<p>I have the following code: </p> <pre><code>import os reader=open('try.txt', 'r') data=reader.read() reader.close() x=0.0 y=0.0 z=0.0 def xcoord(): global x global y global z while x<=1.0: mypath1='C:\\Users\\Rebecca\\Documents\\PhD\\Learnpython\\X' + str(x) os.makedirs(mypath1) ycoord() x+=0.01 y=0.0 z=0.0 def ycoord(): global x global y global z while y<=1.0: mypath2='C:\\Users\\Rebecca\\Documents\\PhD\\Learnpython\\X' + str(x) + '\\Y' + str(y) os.makedirs(mypath2) zcoord() y+=0.01 z=0.0 def zcoord(): global z while z<=1.0: writer=open('C:\\Users\\Rebecca\\Documents\\PhD\\Learnpython\\X' + str(x) + '\\Y' + str(y) + '\\X' + str(x) + 'Y' + str(y) + 'Z' + str(z) + '.dat', 'a') writer.write(data) print('interstitial Ce' + ' %.2f' % x + ' %.2f' % y + ' %.2f' % z + ' fix', file=writer) print('centre' + ' %.2f' % x + ' %.2f' % y + ' %.2f' % z, file=writer) print('size 14 28', file=writer) print('dump1 inter' + '%.2f' % x + '%.2f' % y +'%.2f' % z + '.dat', file=writer) print('output xyz ' + '%.2f' % x + '%.2f' % y + '%.2f' % z + '.xyz', file=writer) writer.close() z+=0.01 xcoord() </code></pre> <p><strong>[N.B. I am aware using global variables in this way is not ideal but it this is currently the only way I can get my head round the code and get it to do what I want....]</strong></p> <p>When this is executed, the values of x, y and z increase as required, but (only sometimes) output value has several decimal places. </p> <p>How do I alter the setting such that x, y and z are only ever to 2 decimal places?</p> <p>Any help would be appreciated - cheers</p>

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