Book
Linear Algebra
Author
Gilbert Strang
Edition
var('x,y,z,f1,f2,t') f1 = y u=diff(f1,y,1) f2 = -x v=diff(f2,x,1) integrate((v-u), (x,0,pi)) /* Verification of Greens theorem */ f1 = y f3=f1(sin(t)) f2= -x f4=f2(cos(t),sin(t)) x=cos(t) y=sin(t) x1=diff(x) y1=diff(y) integrate((f3*x1)+(f4*y1),(t,0,2*pi))
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