Matlab 1

Matlab 1 - Fplot seems to provide a better graph in this...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
MATLAB Assignment 3 Modeling with Differential Equations Exercise 1.1 >> log(20)/log(10) ans = 1.3010 Exercise 1.2 m = -3:0.4:12 started at -3 and added 0.4 to the resulting value until it reached 12 or got as close to 12 without going over. m(20) will take the previous command and give the 20 th answer Exercise 1.3 >> z=30-(100-2exp(4-sin(pi/6)) ??? z=30-(100-2exp(4-sin(pi/6)) | Error: Unexpected MATLAB operator. >> z=30-(100-2*exp(4-sin(pi/6))) z = -3.7691 Exercise 1.4 >> g=inline('sin(x)/x') g = Inline function: g(x) = sin(x)/x >> fplot(g,[-25,25]) >> title('The result of fplot')
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
>> figure >> ezplot(g,[-25,25]) >> title('The result of ezplot') -25 -20 -15 -10 -5 0 5 10 15 20 25 -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15 0.2 0.25 0.3 x The result of ezplot -25 -20 -15 -10 -5 0 5 10 15 20 25 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 The result of fplot
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Fplot seems to provide a better graph in this case because ezplot doesnt show the top of the curve at x=0. Exercise 1.5 function sum = mysum(r,n); sum = 0; for i=0:n sum = sum + 1/((x)^i); end >> mysum(4,8) ans = 1.3333 Exercise 1.6 >> diff('log(cos(t)+4*s)', 't') ans =-sin(t)/(cos(t)+4*s) >> diff('log(cos(t)+4*s)','s') ans = 4/(cos(t)+4*s) Exercise 1.7 a. b. >> dsolve('Dy=cos(t)') ans = sin(t)+C1 c. >> dsolve('Dy=cos(t)','y(0)=5') ans = sin(t)+5 Exercise 1.8 >> dsolve('Dy=(y^4-2)/t') Warning: Explicit solution could not be found; implicit solution returned. > In dsolve at 315 ans = log(t)+1/8*2^(1/4)*log((y+2^(1/4))/(y-2^(1/4))) +1/4*2^(1/4)*atan(1/2*y*2^(3/4))+C1 = 0...
View Full Document

Page1 / 4

Matlab 1 - Fplot seems to provide a better graph in this...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online