2-3-11 - D = B^2(4*A*C>> If this value< 0 there are...

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2/3/11 MATLAB HOMEWORK: clear home or clc >>We need to set values or get a, b, r, m, and c (user inputs) m = input (‘Enter value for slope: ‘); c = input (‘Enter value for y-intercept: ‘); a = input (‘Enter value for horizontal semi- axis: ‘); b = input (‘Enter value for vertical semi-axis: ‘); >>after solving A = B = C = D = B^2-(4*A*C) >> assume that square root of quadratic is positive x1=(-B +sqrt(D))/(2*A); x2=(-B -sqrt(D))/(2*A); y1 = m*x1 +c; y2 = m*x2 +c; >>create a vector v = [x1 y1 x2 y2]; disp(v); CONTINUING from last class: circle-line intersection with if statement clear home or clc >>We need to set values or get a, b, r, m, and c (user inputs) m = input (‘Enter value for slope: ‘); c = input (‘Enter value for y-intercept: ‘); a = input (‘Enter value for x-center: ‘); b = input (‘Enter value for y-center: ‘); r = input (‘Enter value for radius: ‘); >>after solving
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2/3/11 A=m^2 +1 B= -2*a+2*(c-b)*m; C=a^2 +(c-b)^2 –r^2;
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Unformatted text preview: D = B^2-(4*A*C); >> If this value < 0, there are no solutions, your line doesn't intersect the ellipse. if d < 0 v=’no solution’ >> Else, D = ___, there's exactly one tangent touching point, or if D > 0 there are two intersections. else x1=(-B-sqrt(D))/(2+A); x2 = (-B +sqrt(D))/(2+A); y1 = m*x1 +c; y2 = m*x2 +c; >>create a vector v = [x1 y1 x2 y2]; end disp(v); pg 94 in book grade = input (‘What grade? ‘) if grade >= 90 letter = ‘A’; elseif grade >= 80 letter = ‘B’; elseif grade >= 70 letter = ‘C’; elseif grade >= 60 letter = ‘D’; else letter = ‘F’; end disp (letter) Let’s make it more complex! 2/3/11 grade = input (‘What grade? ‘) if (grade >= 90) && (grade <=95) letter = ‘A’; elseif grade >= 80 letter = ‘B’; elseif grade >= 70 letter = ‘C’; elseif grade >= 60 letter = ‘D’; else letter = ‘F’; end disp (letter)...
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This note was uploaded on 05/01/2011 for the course HCSC 110 taught by Professor Amosjohnson during the Spring '11 term at Morehouse.

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2-3-11 - D = B^2(4*A*C>> If this value< 0 there are...

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