<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1474202273150_2698"><span>Hi all,</span></div><div></div><div id="yui_3_16_0_1_1474202273150_2699"> </div><div>I wrote this in XCode Playground…</div><div id="yui_3_16_0_1_1474202273150_2700"><br></div><div id="yui_3_16_0_1_1474202273150_2701">let i = 2^2</div><div class="signature" id="yui_3_16_0_1_1474202273150_2471"><div id="yui_3_16_0_1_1474202273150_2470">print(i)</div><div id="yui_3_16_0_1_1474202273150_2470"><br></div><div id="yui_3_16_0_1_1474202273150_2470" dir="ltr">It runs fine without any errors and print 0, while I expect it to print 4 from 2 power by 2 or 2². Swift ebook and even Google gave me nothing on this.</div><div id="yui_3_16_0_1_1474202273150_2470" dir="ltr"><br></div><div id="yui_3_16_0_1_1474202273150_2470" dir="ltr">What did I miss?</div><div id="yui_3_16_0_1_1474202273150_2470" dir="ltr"><br></div><div id="yui_3_16_0_1_1474202273150_2470" dir="ltr">Thank you.</div><div id="yui_3_16_0_1_1474202273150_2470" dir="ltr"><br></div><div id="yui_3_16_0_1_1474202273150_2470" dir="ltr">Regards,</div><div id="yui_3_16_0_1_1474202273150_2470"><br></div>–Mr Bee<div id="yui_3_16_0_1_1474202273150_2472"><br></div></div></div></body></html>