Do lab

1 files changed, 173 insertions, 0 deletions

diff --git a/math2373/lab4.txt b/math2373/lab4.txt
new file mode 100644
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--- /dev/null
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@@ -0,0 +1,173 @@
+v.*w
+
+ans =
+
+    10    36    32   -12    42
+
+v*w
+{Error using <a href="matlab:matlab.internal.language.introspective.errorDocCallback('mtimes')" style="font-weight:bold"> * </a>
+Incorrect dimensions for matrix multiplication. Check that the number of columns in the first
+matrix matches the number of rows in the second matrix. To perform elementwise
+multiplication, use '.*'.
+} 
+v.^3
+
+ans =
+
+     8    27    64    -8   216
+
+v./w
+
+ans =
+
+    0.4000    0.2500    0.5000   -0.3333    0.8571
+
+a = [0,1,2,3,4,5]
+
+a =
+
+     0     1     2     3     4     5
+
+b=a.^3-9*a.^2+18*a
+
+b =
+
+     0    10     8     0    -8   -10
+
+plot(a,b)
+c=(0:0.1:5);
+d=c.^3-9*c.^2+18*c;
+plot(c,d);
+c,d
+
+c =
+
+  Columns 1 through 9
+
+         0    0.1000    0.2000    0.3000    0.4000    0.5000    0.6000    0.7000    0.8000
+
+  Columns 10 through 18
+
+    0.9000    1.0000    1.1000    1.2000    1.3000    1.4000    1.5000    1.6000    1.7000
+
+  Columns 19 through 27
+
+    1.8000    1.9000    2.0000    2.1000    2.2000    2.3000    2.4000    2.5000    2.6000
+
+  Columns 28 through 36
+
+    2.7000    2.8000    2.9000    3.0000    3.1000    3.2000    3.3000    3.4000    3.5000
+
+  Columns 37 through 45
+
+    3.6000    3.7000    3.8000    3.9000    4.0000    4.1000    4.2000    4.3000    4.4000
+
+  Columns 46 through 51
+
+    4.5000    4.6000    4.7000    4.8000    4.9000    5.0000
+
+
+d =
+
+  Columns 1 through 9
+
+         0    1.7110    3.2480    4.6170    5.8240    6.8750    7.7760    8.5330    9.1520
+
+  Columns 10 through 18
+
+    9.6390   10.0000   10.2410   10.3680   10.3870   10.3040   10.1250    9.8560    9.5030
+
+  Columns 19 through 27
+
+    9.0720    8.5690    8.0000    7.3710    6.6880    5.9570    5.1840    4.3750    3.5360
+
+  Columns 28 through 36
+
+    2.6730    1.7920    0.8990         0   -0.8990   -1.7920   -2.6730   -3.5360   -4.3750
+
+  Columns 37 through 45
+
+   -5.1840   -5.9570   -6.6880   -7.3710   -8.0000   -8.5690   -9.0720   -9.5030   -9.8560
+
+  Columns 46 through 51
+
+  -10.1250  -10.3040  -10.3870  -10.3680  -10.2410  -10.0000
+
+e =(-2:0.2:6);
+g = e.^3-5*e.^2-4*e+20
+
+g =
+
+  Columns 1 through 9
+
+         0    5.1680    9.5040   13.0560   15.8720   18.0000   19.4880   20.3840   20.7360
+
+  Columns 10 through 18
+
+   20.5920   20.0000   19.0080   17.6640   16.0160   14.1120   12.0000    9.7280    7.3440
+
+  Columns 19 through 27
+
+    4.8960    2.4320         0   -2.3520   -4.5760   -6.6240   -8.4480  -10.0000  -11.2320
+
+  Columns 28 through 36
+
+  -12.0960  -12.5440  -12.5280  -12.0000  -10.9120   -9.2160   -6.8640   -3.8080         0
+
+  Columns 37 through 41
+
+    4.6080   10.0640   16.4160   23.7120   32.0000
+
+plot(e,g)
+d = (0, 2, 4, 5, 6, 8)
+ d = (0, 2, 4, 5, 6, 8)
+       ↑
+{Error: Invalid expression. When calling a function or indexing a variable, use parentheses.
+Otherwise, check for mismatched delimiters.
+} 
+d = [0, 2, 4, 5, 6, 8]
+
+d =
+
+     0     2     4     5     6     8
+
+f = [0, 20, 30, 50, 70, 100];
+plot(d,f,’r:p’);
+ plot(d,f,’r:p’);
+          ↑
+{Error: Invalid text character. Check for unsupported symbol, invisible character, or
+pasting of non-ASCII characters.
+} 
+plot(d,f,'r:p');
+plot(d,f,'b:s');
+plot(d,f,’b:p’);
+ plot(d,f,’b:p’);
+          ↑
+{Error: Invalid text character. Check for unsupported symbol,
+invisible character, or pasting of non-ASCII characters.
+} 
+xlabel('Dog years');
+ylabel('Human years');
+title('The passage of time')
+plot(d,f,'b:p');
+q = [0,2,4,5,6,8]
+
+q =
+
+     0     2     4     5     6     8
+
+q = [0,2,4,5,6,8];
+r = [0,20,30,30,50,100];
+plot(d,f,'r:p');
+hold on
+lsline
+hold off
+plot(q,r,'r:p');
+lsline;
+man
+{Undefined function or variable 'man'.
+} 
+xlabel('Decades of Life')
+ylabel('Likliness of Death');
+title('Funny Graph Title');
+diary off