In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.
Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "You can test this out by running java -version in the shell or command prompt provided by your system."
A block of code is set as follows:
(defn generate-prices [lower-bound upper-bound]
(filter (fn [x] (>= x lower-bound))
(repeatedly (fn [] (rand upper-bound)))))When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
(defn generate-sine-sequence []
(let [ein (randomize-vertical-dilation sine 0.5 2.7)
zwei (randomize-horizontal-dilation ein 0.3 2.7)
sine-partial (partial zwei 0)
xinterc-sine-left (find-xintercept - sine-xintercept)
xinterc-sine-right (find-xintercept + sine-xintercept)
granularityS (rand-double-in-range 0.1 1)
xsequenceS (iterate (partial + granularityS) xinterc-sine-left)]
(map sine-partial xsequenceS)))
(defn generate-oscillating-sequence []
(four analytics/generate-prices-without-population 5 15))
Any command-line input or output is written as follows:
> (alter-var-root #'system component/start) > (clojure.pprint/pprint system) {:tms {:channel #object[clojure.core.async.impl.channels.ManyToManyChannel 0x14d1e55 "clojure.core.async.impl.channels.ManyToManyChannel@14d1e55"]}, :cns {:timeseries {:channel #object[clojure.core.async.impl.channels.ManyToManyChannel 0x14d1e55 "clojure.core.async.impl.channels.ManyToManyChannel@14d1e55"]}, :channel #object[clojure.core.async.impl.channels.ManyToManyChannel 0x14d1e55 "clojure.core.async.impl.channels.ManyToManyChannel@14d1e55"]}}
New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "To be precise, these values are called Vars."