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4. NUMERICAL INTEGRATION:

h. Area of a single trapezoid =. 4. NUMERICAL INTEGRATION:.

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4. NUMERICAL INTEGRATION:

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  1. h Area of a single trapezoid = 4. NUMERICAL INTEGRATION: There are various numerical methods to calculate the definite integrals. The integral gives the area under the curve defined by the function f(x). We use the function values and increment value between the successive points on the x axis in order to calculate the integral. Trapezoidal Rule:

  2. Simpson’s Rule: In Simpson’s rule, number of section n must be even! n=2*m

  3. Example: Numerical Integration using Matlab: Trapezoidal Rule gives: 0.743 clc; clear syms x f=exp(-x^2) y=int(f,0,1) vpa(y,5) Simpson’s Rule gives: 0.747 >> vpa(int('exp(-x^2)',0,1))

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