how a crystal radio works for beginners

... the Basics, contains an explanation of the finer points that are essential for using MATLAB effectively Chapter 5, MATLAB Graphics, contains a more detailed look at many of the MATLAB commands for ... Started MATLAB Basics Interacting with MATLAB 31 Practice Set A: Algebra and Arithmetic 48 Beyond the Basics 50 MATLAB Graphics 67 Practice Set B: Calculus, Graphics, and Linear Algebra 86 M-Books ... Chapter for details about how MATLAB converts between symbolic and floating point numbers Managing Variables 13 Managing Variables We have now encountered three different classes of MATLAB data:...

Ngày tải lên: 01/01/2014, 17:42

... Laura, and has been praised by this poet as Giotto was by Dante Another eminent Florentine artist was ANDREA ORCAGNA, as he is called, though his real name was ANDREA ARCAGNUOLO DI CIONE He was ... that I shall not speak of them His father was a goldsmith, and Orcagna first studied his father's craft; he was also an architect, sculptor, mosaist, and poet, as well as a painter He made an advance ... Cimabue must have been very happy at this great appreciation of his art, and from that time he was famous in all Italy [Illustration: FIG 28. THE MADONNA OF THE CHURCH OF SANTA MARIA NOVELLA.] Another...

Ngày tải lên: 31/03/2014, 21:20

... was born, but as he was employed to make a candelabra for the eternal lamp which burned before the sacred statue of Athena Polias, we may suppose that he was an Athenian Some writers say that ... except that he had a brother who was a painter, and this makes it probable that the family of Phidias were artists As nearly as can be told, Phidias was born about B.C 500 This would have made him ... lover, and he became a famous artist at Corinth We have said that accounts of individual artists exist from about 700 B.C.; but these accounts are of so general a character and so wanting in detail...

Ngày tải lên: 31/03/2014, 21:20

... circuits are split into upstairs and downstairs If a cartridge fuse is used it should be rated at 5amps, if an MCB is used it should be rated at 6amps Please also check the rules very carefully for ... electricians when you sell your home This can affect your sale, you could be breaking the law and your house insurance may not be valid Please be absolutely sure you know what you are doing and get all ... energy than the circuit is designed for More energy = more heat and cables can catch fire Part P of the new building regulations could involve a check on any additional circuitry by qualified...

Ngày tải lên: 14/04/2014, 11:33

... 126 138 Class double array double array double array double array double array double array char array sym object double array function_handle array inline object function_handle array inline ... Basics, contains an explanation of some of the finer points that are essential for using MATLAB effectively Chapter 5, MATLAB Graphics, contains a more detailed look at many of the MATLAB commands ... 22.5000 MATLAB prints the answer and assigns the value to a variable called ans If you want to perform further calculations with the answer, you can use the variable ans rather than retype the answer...

Ngày tải lên: 27/06/2014, 08:20

... You can think of an array as a two-dimensional grid of data A single number (or symbolic expression) is regarded by MATLAB as a × array, sometimes called a scalar A × n array is called a row ... sinelimit.m, are local variables This means that, unlike the variables that are defined in a script M-file, these variables are completely unrelated to any variables with the same names that you may have ... Window and the Workspace Browser contain the same information as displayed above Variables and Assignments In MATLAB, you use the equal sign to assign values to a variable For instance, >> x = x =...

Ngày tải lên: 09/08/2014, 12:22

... issue a new image command In addition to manipulating images that you read into MATLAB, you can create your own images to visualize numerical data Suppose, for example, that you have an array temp ... such as varying the frame rate; see the online help for details Once you have created a movie, you can use movie2avi (in MATLAB and later) to save it as an AVI file, which is a standard format that ... More popular formats such as mp3 are not available, but you may have software that converts other formats to and from wav The commands wavread and wavwrite read and write this format; see the...

Ngày tải lên: 09/08/2014, 12:22

... for the offspring for all possible combinations of the genotypes of the parents: Genotype of Offspring AA Aa aa AA-AA 0 AA-Aa 1/2 1/2 Parental Genotype AA-aa Aa-Aa 1/4 1/2 1/4 Aa-aa 1/2 1/2 aa-aa ... types, and earlier in this chapter we introduced another type, namely logical arrays Two other data types that are useful in MATLAB programming are cell arrays and structure arrays Cell arrays are ... Workspace and a disk file By default the variables are written and read in MATLAB’s own binary format, which is signified by the file extension mat ➯ MATLAB uses a new binary format that cannot be read...

Ngày tải lên: 09/08/2014, 12:22

... new values for the ranges of the x- and y-axes MATLAB has a number of dialog boxes that you can use either as callback functions or in an ordinary M-file For example, you can use inputdlg in place ... R*(mˆN-1)/(mˆN)/(m-1) For example, if one is shopping for a house and can afford to pay $1500 per month for a 30-year fixed-rate mortgage, the maximal loan amount as a function of the interest rate is given ... floating-point numbers with two digits after the decimal point There’s another way to understand these calculations that’s a little slicker, and that uses MATLAB’s linear-algebra capability Namely,...

Ngày tải lên: 09/08/2014, 12:22

... each case? What is the storage capacity? How many acres are available? What crops are constrained by seed limitations? To what extent? What about preferences? What are the minimum acreages for ... capital formation, exports, total final demand, and output Thus outputs from each sector can be read off along a row, and inputs into a sector can be read off along a column Chapter 10 Applications ... wheat and plant 56.5789 acres of barley and 18.4211 acres of corn There is no practical limit on the number of variables and constraints that MATLAB can handle – certainly none that the relatively...

Ngày tải lên: 09/08/2014, 12:22

... hits (For this exercise, we shall ignore walks, hit batsmen, sacrifices, and other plate appearances that not result in an official at bat.) In an average year he amassed 500 official at bats (a) Design ... 12 and 13 Captain Picard is hiding in a square arena, 50 meters on a side, which is protected by a level-5 force field Unfortunately, the Cardassians, who are firing on the arena, have a death ray ... Design a Monte Carlo simulation of a year in Tony’s career Run it What is his batting average? (b) Now simulate a 20-year career Assume 500 official at bats every year What is his best batting average...

Ngày tải lên: 09/08/2014, 12:22

... graph is certainly not right The warning message provides a clue What has happened is that MATLAB is plotting the real part of x1/3 , but for a different branch of the multivalued function than ... 18 20 We see that they cross again, near x = 16 If you know a little calculus, you can show that the graphs never cross again (by taking logarithms, for example), so we have found all the points ... redo your calculation using smaller arrays, e.g., by using fewer grid points in a 3D plot, or by breaking a large vectorized calculation into smaller pieces using a loop Clearing large arrays from...

Ngày tải lên: 09/08/2014, 12:22

... gets an answer only if the coefficient matrix is non-singular Solutions to Practice Set B: Calculus, Graphics, and Linear Algebra 11 (a) rank (A1 ) ans = rank (A2 ) ans = rank (A3 ) ans = rank (A4 ) ans ... function format short yearbattingaverage(500) ans = 0.3380 (b) Now let’s write a function M-file that simulates a 20-year career As with the number of at bats in a year, we’ll allow for a varying-length ... his batting average for the year The following function does just this, allowing more generally for n at bats in the year, although we shall use only 500 yearbattingaverage = @(n) sum(rand(n,...

Ngày tải lên: 09/08/2014, 12:22

... range of the data axis equal – makes the horizontal and vertical scales equal axis square – makes the axis box square axis off – hides the axes and tick marks bar Draws a bar graph 295 bar([2, 7, ... of a row of a matrix, or arguments to a command Can also be used to separate commands on a command line ; Suppresses output of a MATLAB command, and can be used to separate commands on a command ... image Displays a matrix as an image image(ones(50,100)) imagesc Like image, but scales the data if necessary imagesc(randn(50,100)) imread Reads in a graphics file and converts it to a matrix A...

Ngày tải lên: 09/08/2014, 12:22

... BÀI LUẬN TIẾNG ANH HAY THEO CHỦ ĐỀ trampling to step heavily on something ...

Ngày tải lên: 17/08/2015, 11:16

... as temperature, pressure or voltage has to take up a specified value, and maintain it as accurately as possible A simple example is a furnace whose temperature has to be maintained constant If ... SP, and derives from it the manipulating variable MV There are a number of ways to carry out this task: mechanical, pneumatic, electrical, mathematical The mechanical controller, for example, alters ... controllers a microprocessor converts all analog inputs into numerical values, and uses them to calculate the manipulating variable This has certain advantages compared with analog processing: - increased...

Ngày tải lên: 13/12/2013, 00:14

... it is vital to have at least a native teacher of that language Many English centers offer foreigners such as American, Canadian, Australian or even Filipino, Singaporean people as teachers of ... observation are conducted as qualitative research methods and the questionnaires are used as a quantitative research instrument 3.1.3 Data collection process Both qualitative and quantitative research ... entertain • Participating in a face-to-face conversation, discussing work as a partner • Watching a film, a play or a TV program to entertain • Participating in a meeting, seminar or discussion as...

Ngày tải lên: 14/12/2013, 00:41

... they are generally characterized by a grace period, a long maturity period and a back-loaded repayment profile A repayment profile is back-loaded if repayments increase as a loan matures For terms ... funds have substantial assets, it may be recommendable to take these assets into account Example: A small island economy A small island economy has suffered from a substantial decline in its main ... “Baseline” Verify that the output tables are adjusted accordingly 16 A Guide to LIC Debt Sustainability Analysis 3) Historical averages and standard deviations are computed in the template for...

Ngày tải lên: 15/03/2014, 14:20

... Ireland, Bayer, Xstrata and Ericsson) In addition there are US companies (eg General Electric and Abbott Laboratories), Chinese (Air China), Japanese (Honda, Kawasaki and Mitsubishi), Taiwanese ... governments, Tsarist Russia, US states, Latin American enterprises and so on have all issued beautifully engraved elaborate bonds that are now used to make lampshades or framed decorations for the lavatory, ... ‘perpetual’ ‘Permanent capital’ is used as a label for corporate debt ‘Perpetual’ means a financial instrument that has no declared end date So a perpetual callable tier-one note sounds like a sort...

Ngày tải lên: 15/03/2014, 15:44