error Unbalanced or unexpected parenthesis or bracket

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Muhammad Fauzan
Muhammad Fauzan on 28 Jul 2021
Commented: Chunru on 28 Jul 2021
Dy = 10; Dz = 10;
lambda = 0.0001;
a = 90;
v = 3;
Q1 = 1000;
%
xs1 = 2000; ys1 = -1000;xs5 = 2000; ys5 = -2000;xs9 = 6000; ys9 = -2000;
xs2 = 4000; ys2 = 2000;xs6 = 3000; ys6 = 1000;xs10 = 7000; ys10 = 1900;
xs3 = 100; ys3 = 1500;xs7 = 1000; ys7 = -1000;xs11 = 3000; ys11 = 2500;
xs4 = 1000; ys4 = -100;xs8 = 500; ys8 = 2500;xs12 = 8000; ys12 = -1000;
xmin = 0; xmax = 1000;
ymin = -4000; ymax = 4000;
H1 = 100;
%
z = 1.5;
gplot = 1;
gcont = 2;
[x,y] = meshgrid(linspace(xmin,xmax,100),linspace(ymin,ymax,100));
e = ones(size(x));
aa = (90-a)*pi/180;
xx1 = (x - xs1)*cos(aa) - (ys1 - y)*sin(aa); yy1 = (y - ys1)*cos(aa) + (xs1 - x)*sin(aa);
xx2 = (x - xs2)*cos(aa) - (ys2 - y)*sin(aa); yy2 = (y - ys2)*cos(aa) + (xs2 - x)*sin(aa);
xx3 = (x - xs3)*cos(aa) - (ys3 - y)*sin(aa); yy3 = (y - ys3)*cos(aa) + (xs3 - x)*sin(aa);
xx4 = (x - xs4)*cos(aa) - (ys4 - y)*sin(aa); yy4 = (y - ys4)*cos(aa) + (xs4 - x)*sin(aa);
xx5 = (x - xs5)*cos(aa) - (ys5 - y)*sin(aa); yy5 = (y - ys5)*cos(aa) + (xs5 - x)*sin(aa);
xx6 = (x - xs6)*cos(aa) - (ys6 - y)*sin(aa); yy6 = (y - ys6)*cos(aa) + (xs6 - x)*sin(aa);
xx7 = (x - xs7)*cos(aa) - (ys7 - y)*sin(aa); yy7 = (y - ys7)*cos(aa) + (xs7 - x)*sin(aa);
xx8 = (x - xs8)*cos(aa) - (ys8 - y)*sin(aa); yy8 = (y - ys8)*cos(aa) + (xs8 - x)*sin(aa);
xx9 = (x - xs9)*cos(aa) - (ys9 - y)*sin(aa); yy9 = (y - ys9)*cos(aa) + (xs9 - x)*sin(aa);
xx10 = (x - xs10)*cos(aa) - (ys10 - y)*sin(aa); yy10 = (y - ys10)*cos(aa) + (xs10 - x)*sin(aa);
xx11 = (x - xs11)*cos(aa) - (ys11 - y)*sin(aa); yy11 = (y - ys11)*cos(aa) + (xs11 - x)*sin(aa);
xx12 = (x - xs12)*cos(aa) - (ys12 - y)*sin(aa); yy12 = (y - ys12)*cos(aa) + (xs12 - x)*sin(aa);
c1 = 1000*Q1*e./(4*pi*(xx1>0).*xx1*sqrt(Dy*Dz)*v).*exp(-v*yy1.*yy1./(4*Dy*(xx1>0.*(exp(-v*(z-H1)*e./(4*Dz*(xx1>0).*xx1)).*(exp(-v*(z-H1)*e;
Error Unbalanced or unexpected parenthesis or bracket in
c1 = 1000*Q1*e./(4*pi*(xx1>0).*xx1*sqrt(Dy*Dz)*v).*exp(-v*yy1.*yy1./(4*Dy*(xx1>0.*(exp(-v*(z-H1)*e./(4*Dz*(xx1>0).*xx1)).*(exp(-v*(z-H1)*e;
Please Help!!

Answers (2)

Walter Roberson
Walter Roberson on 28 Jul 2021
c1 = 1000*Q1*e./(4*pi*(xx1>0).*xx1*sqrt(Dy*Dz)*v).*exp(-v*yy1.*yy1./(4*Dy*(xx1>0.*(exp(-v*(z-H1)*e./(4*Dz*(xx1>0).*xx1)).*(exp(-v*(z-H1)*e;
1 2 1 2 1 0 1 2 3 4 5 6 5 6 7 6 54 5 6 7 6
You have 6 ( that are not matched with a )

Chunru
Chunru on 28 Jul 2021
You may want to change the c1 line as follows. It is grammatically correct, but not necessarily correct for your problem. You need to check agaist the equation.
You can break down the statement into smaller pieces (easier for checking). MATLAB editor also does the pairing of parentheses when you move the cursor to a parenthesis.
c1 = 1000*Q1*e./(4*pi*(xx1>0).*xx1*sqrt(Dy*Dz)*v) ...
.*exp(-v*yy1.*yy1./(4*Dy*(xx1>0.*(exp(-v*(z-H1)*e./(4*Dz*(xx1>0).*xx1)).*(exp(-v*(z-H1)*e))))));

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