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ch04.asciidoc

@@ -147,6 +147,7 @@ The _mod p_ (modulo prime number p) indicates that this curve is over a finite f
 Because this curve is defined over a finite field of prime order instead of over the real numbers, it looks like a pattern of dots scattered in two dimensions, which makes it difficult to visualize. However, the math is identical to that of an elliptic curve over real numbers. As an example, <<ecc-over-F17-math>> shows the same elliptic curve over a much smaller finite field of prime order 17, showing a pattern of dots on a grid. The +secp256k1+ bitcoin elliptic curve can be thought of as a much more complex pattern of dots on a unfathomably large grid. 
 
 [[ecc-over-F17-math]]
+[role="smallersixty"]
 .Elliptic curve cryptography: visualizing an elliptic curve over F(p), with p=17
 image::images/mbc2_0403.png["ecc-over-F17-math"]