chapter 8  functional programming in scala

... type Int => Int, which indicates that f expects an Int and will also return an Int (The type of a function expecting an Int and a String and returning an Int would be written as (Int,String) => Int.) ... factorial(n: Int): Int = { def go(n: Int, acc: Int): Int = if (n

Ngày tải lên: 01/08/2014, 17:15

... comfortable doing all of these things: * Manipulating path information from the command line * Filtering lists using filter instead of list comprehensions * Mapping lists using map instead of list ... which you studied in depth in Chapter 13, Unit Testing 16.2 Finding the path When running Python scripts from the command line, it is sometimes useful to know where the currently running script is ... appeared in the original You could accomplish the same thing using list comprehensions, as you saw in Section 4.5, “Filtering Lists” You could also accomplish the same thing with a for loop Depending...

Ngày tải lên: 24/10/2013, 09:15

... rates and catalyst stability in the Pd/batophenanthroline-catalyzed olefin oxidations was observed in the presence of Under such conditions, the catalyst-containing aqueous phase could be recycled ... at chloroethanol is produced in appreciable quantities In a detailed kinetic study it was established, that when a chloride ligand in is replaced by pyridine, the intermediate hydroxyethylpalladium ... to a yield of 98 % in M chloride solutions (Scheme 8.2) [13] With olefins other than ethene two isomeric chlorohydrins can be obtained, one of them being chiral When pyridine was replaced by...

Ngày tải lên: 23/12/2013, 07:19

... Oriented Programming Summary CHAPTER 2: PUTTING FUNCTIONAL PROGRAMMING INTO A MODERN CONTEXT Managing Side Effects Agile Programming Methodologies Declarative Programming Functional Programming Is ... tch calcLines :: Int -> Int -> String calcLines line maxp = let ch = (ord ‘A’) + line in let l = (calcLine ch line maxp) ++ “\n” in if line == maxp then l else l ++ (calcLines (line+1) maxp) ++ ... www.it-ebooks.info Putting Functional Programming into a Modern Context WHAT’ S IN THIS CHAPTER? ➤ Managing side effects ➤ Agile programming methodologies ➤ Declarative programming ➤ Functional programming...

Ngày tải lên: 28/04/2014, 16:01

... professional looking GUIs Containers – Top level containers  Containers are the windows that can hold other windows or GUI components • JFrame, JPanel, Box,…  In a GUI, there is a main window, top-level ... Event-handling options • Handling events • Handling events interfaces • Handling events • Handling events classes with separate listeners by implementing with named inner classes with anonymous inner ... 1.02 • Easy building of simple-looking interfaces • GUIs depend on the platform program is running on  Swing • GUI library added to Java starting in Java 1.1 • Professional looking GUIs that follow...

Ngày tải lên: 13/05/2014, 10:43

... commonly used commands in a program 44 Toolbars – Constructors and Methods       JToolBar() JToolBar(String titleString) JToolBar(int orientation) JToolBar(String titleString, int orientation) ... returns the item at the specified index  int getSelectedIndex() • returns the position of selected item  void setSelectedIndex(int index) • sets the selected index  Object getSelectedItem() • returns ... Constructors • JTextArea(int rows, int cols) – constructs a new text area with number of rows and columns • JTextArea(String text, int rows, int cols) – constructs a new text area with an initial text Example:...

Ngày tải lên: 13/05/2014, 10:43

... (Prasad) ScalaMulti 34 Closures scala> val inc = 10 inc: Int = 10 scala> def incre(x: Int) = x + inc incre: (Int)Int scala> def app(y: Int, g: (Int=>Int)) = g(y) app: (Int,(Int) => Int)Int scala> ... (Prasad) ScalaMulti 32 Curried Functions scala> def add(x: Int, y: Int) = x + y add: (Int,Int)Int scala> add(1,3) res0: Int = scala> def addc(x: Int)(y: Int) = x + y addc: (Int)(Int)Int scala> ... res1: Int = CS3180 (Prasad) ScalaMulti 33 Partial Application scala> def addc(x: Int)(y: Int) = x + y addc: (Int)(Int)Int scala> val z = addc(1) _ z: (Int) => Int = scala> z(3) res2: Int...

Ngày tải lên: 24/10/2014, 13:47

... Jeng Finding values to be loaded into the timer Assuming XTAL =11.0592MHz from Example 9-10 1.Divide the desired time delay by 1.085μs 2.Perform 65536-n, where n is the decimal value we got in Step ... register ©2002 MuDer Jeng ©2002 MuDer Jeng ©2002 MuDer Jeng ©2002 MuDer Jeng Mode programming 1.Loaded value into TL and TH 2.”SETB TR0” for timer ;”SETB TR1” for timer 3.If TF (timer flag) = ... ©2002 MuDer Jeng ©2002 MuDer Jeng Mode Like mode except that it is a 13-bit timer Mode Programming 1.Loaded value into TH (8-bit timer) 2.”SETB TR0” for timer ;”SETB TR1” for timer 3.If TF (timer...

Ngày tải lên: 27/10/2013, 19:15

... however, as D's income declines relative to R's income, the slope of the indifference curve becomes shallower, indicating that D is willing to sacrifice less income to increase R's income by an ... house can be bought in Six Mile (with much more land) for $100,000 The engineer you are interested in hiring is earning $100,000 a year in Six Mile In your interviews with the engineer, she tells ... maximizes utility by not donating any income to R At point A, the constraint is steeper than the indifference curve, resulting in a corner solution D does not donate any income increase to R: the first...

Ngày tải lên: 17/12/2013, 15:18

... BStringView Class Create a BStringView object by invoking the BStringView constructor The BStringView class is derived from the BView class In creating a new string view object, the BStringView ... Manipulating the Text in a String Once a string view object is created, its text can be altered using a variety of BStringView member functions Setting the text in a string The text of a BStringView ... drawing the string “rotated.” Simple Text Throughout this book you’ve seen that you can draw a string in any view by invoking the BView’s DrawString() function DrawString() is a handy routine...

Ngày tải lên: 26/01/2014, 07:20

... sulfamethazine and sulfamethoxazolethe first being a veterinary drug and the latter used in human therapy Model experiments examining degradation, leaching, and uptake were performed Concentrations in ... concept including urine recycling will lead to an input of these compounds into the top soil layer of agricultural fields or will limit the usability of the urine The experiments described in this ... coefficients in soil have been determined that imply preferential leaching with the drainage water.30 The sulfonamide sulfapyridine has been found to adsorb stronger in moist soils than in dry ones.31 In...

Ngày tải lên: 18/06/2014, 16:20

... this point would be valid only when the substrate concentration is high, whereas it is invalid in the case where substrate is the limiting factor, as shown in figure 8.8 In addition, in modeling ... properly controlled in order to maximize their metabolic activity According to Li and Liu (2005), the inflection points in figure 8.10a to d indeed represent a turning point from oxygen limitation ... decreased markedly with the increase in the size of aerobic granules, indicating that the microbial activity inside aerobic granules is inhibited as the granule size increases Moreover, the specific...

Ngày tải lên: 18/06/2014, 16:20

... al.27 and Lin et al.38 showed that the reservoir can be pressurized by a compressed inert gas such as nitrogen to maintain a steady liquid flow, thus eliminating the use of the syringe pump In addition, ... are several aspects in considering the use of spontaneous Raman scattering as a quantitative measuring technique for aerosol particles In principle, the Raman scattering intensity, Is is proportional ... the nonlinear least-squares method outlined by Marquardt.52 In Figure 8.9, a plot of the scattering intensity ratio against the molar mixing ratio of Na2SO4 to (NH4)2SO4 is shown The linearity...

Ngày tải lên: 18/06/2014, 19:20

... light is the in owing light minus that in use Water flowing out is the in owing water minus evaporation minus plant transpiration Lead flowing out is the lead flowing in plus the recycle minus that ... concentration in the water and to the quantity of organic sediments) minus the lead in the organic matter consumed minus the lead in organic matter in water flowing out minus that going into buried ... returning, including surviving trees and floating vegetation Battery Washing Starts Stops g/m2 Plant Biomass 11,111 Surface Sediments Buried Sediments 83,333 0.002 Lead in Water 8888 Lead in Plants...

Ngày tải lên: 18/06/2014, 19:20

... yearly for 90Sr determination The results presented in Figure 8.1 show a large increase in 90Sr activity in milk samples during the 1960s, corresponding to nuclear testing in the atmosphere The ... interest in levels of natural series radionuclides in foods because of the uranium mining occurring there A study by Martin and Ryan [51] looked at levels in traditional aboriginal foods in northern ... that certain food types, including mushrooms, had contamination with radiocesium in excess of 100 kBq/kg, and 90Sr in excess of 1.5 kBq/kg A study of a drainless peat lake in the contaminated region...

Ngày tải lên: 18/06/2014, 19:20

... wind speed increases, the total amount of PCBs remaining in the water increases because of the very nonlinear increase of sediment and contaminant resuspension as the wind speed increases In these ... discussed in this section: (1) the transport of PCBs in the Saginaw River, including the assumption of equilibrium partitioning; and (2) the transport of PCBs in Green Bay as affected by finite sorption ... in the inner bay and by a factor of five or more in the outer bay At the end of the 14 days, the percentage of PCBs originally resuspended and still remaining in the water (dissolved in the water...

Ngày tải lên: 18/06/2014, 22:20

... of veterinary medicines in aquatic systems, and e) consideration of the potential impacts of mixtures of veterinary medicines and mixtures containing veterinary medicines and other contaminant ... bioavailability of veterinary medicines in the natural environment will likely be very different than in the laboratory By combining information on a substance’s pharmacology and toxicology in target organisms ... for assessing the fate of veterinary medicines in manure at either the laboratory level or field level exists, and tests in existing pesticide or OECD guidelines not cover these aspects In terms...

Ngày tải lên: 18/06/2014, 22:20

... responsibility of doing the footwork, researching the stock and reading up on market trends—something many, many investors simply don't like doing Should you have a problem or dislike typing in the order ... trading activity, for example These professionals would then further investigate to uncover illegal activity such as insider trading (trading with prior or nonpublic information) To eliminate ... prestigious office buildings Since they send their quarterly statements via e-mail, they save money on paper and printing costs With orders being sent in electronically, staff costs are minimal As a result,...

Ngày tải lên: 01/07/2014, 21:20

... on investment Market Research and Competitive Intelligence To thoroughly understand what is happening in the industry in which you operate, it is invaluable to know what the trends in the industry ... marketing strategy Market research includes: defining the problem and research objectives, developing a research plan, presenting the plan, implementing the plan (collecting TLFeBOOK Marketing, ... Analysis 149 and analyzing data), and interpreting and reporting the findings This is the area of marketing where we begin to see science as well as art This chapter focuses in detail on how to...

Ngày tải lên: 01/07/2014, 22:20

Ngày tải lên: 02/07/2014, 06:20