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The picture shows that the First-Order Bickley-Naylor function is symmetric about 0. However, upon inspection, any value of x < 0 produces Infinity because at pi/2, cos(theta) goes to 0. This results in exp[abs(x)/0] at the end of the integration range. Thus, I think the picture should be modified to properly show that the function is only defined in a useful way for values of x >= 0. 76.129.215.146 (talk) 14:10, 30 November 2022 (UTC)[reply]
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