| This book follows a few typographical conventions: A new term is set in italics the first time it is introduced. Program text, functions, variables, and other "computer language" are set in a fixed-pitch font for example, Sphere.translateY = 5 + Cube.rotateZ. Code lines that do not fit within the margins of the printed page are continued on the next line, and the continuation of the line is preceded by a code continuation character .
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