Plotting and Calculating Integrals
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How will I plot and calculate these following integrals using matlab? What is the correct matlab code because it keeps me getting error :(( please help me~
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chunyi liu
2022-6-22
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syms x
int(2*x^2/sqrt(1+x),x,1,6)
int(cos(2*x)/x,x,1,2)
int(exp(2*x)/x,x,1,2)
int(exp(-x^2),x,-1,1)
Definite integrals are numerical values, not functions.
I'm not sure how you want to draw the plot, if give each value a corresponding independent variable and place them on the graph, you will see that they are four very similar values.
syms x
y1=int(2*x^2/sqrt(1+x),x,1,6)
y2=int(cos(2*x)/x,x,1,2)
y3=int(exp(2*x)/x,x,1,2)
y4=int(exp(-x^2),x,-1,1)
t=1:4;
y=[y1 y2 y3 y4];
plot(t,y1,'*')
axis([1 4 62.2692 62.2693])
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