Download An Engineer's Guide to MATLAB by E. Magrab, et al., PDF

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Extra info for An Engineer's Guide to MATLAB

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2. There are several ways of getting program results to the command window. The first is simply to omit the semicolon (;) at the end of an expression. In this case, MATLAB displays in the command window the variable’s name followed by an equal sign, and then skips to the next line and displays the value(s) of the variable. This method is useful during debugging. When output values are to be annotated for clarity, one uses either disp or Clicking on this icon brings up the Browser. 16 Accessing the Browser window to change current path (directory).

W. Weisstein, CRC Concise Encyclopedia of Mathematics, Chapman & Hall, Boca Raton, FL, 2003, pp. 697–698. 4 The Symbolic Toolbox 39 d = factor(simple(d)); n = collect(subs(n, 'cos(3*t) - 1', '-Z')) d = collect(subs(d, 'cos(3*t) - 1', '-Z')) The execution of this script gives n= (-4)*Z*b^2 d= 8*Z*b^2 From this point on, it is easier to complete the algebra manually. 4 n -4Zb2 -1 -1 -1 = = = = 3/2 2 3/2 2 8b sin(3t/2) d 4b12Z 4b24 sin (3t/2) A 8Zb B Maximum response amplitude of a single-degree-of-freedom system The nondimensional response y(t) of a single-degree-of-freedom system whose mass is subjected to a suddenly applied and maintained force of unit magnitude at t = 0 is given by7 y(t) = t e - jt ejh sin C r(t - h) D dh r L0 where r = 21 - z2 and 0 6 j 6 1.

2079. 2 In the command window, the alphanumeric characters will appear in the same font. 3. 4 Some Elementary MATLAB Functions Mathematical function MATLAB expression ex ex - 1 x 66 1 1x ln(x) or loge(x) log10(x) ƒxƒ signum(x) loge(1 +x) x 66 1 n! All prime numbers … n exp(x) expm1(x) sqrt(x)a log(x)b log10(x) abs(x) sign(x) log1p(x) factorial(n)c primes(n) If x is an array with each element in the array 7 0, use realsqrt(x) to increase computational speed. b If x is an array with each element in the array 7 0, use reallog(x) to increase computational speed.

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