Digital Library of Mathematical Functions
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1 Algebraic and Analytic MethodsAreas1.4 Calculus of One Variable

Figure 1.4.2 (See in context.)

See accompanying text
Figure 1.4.2: Convex function f(x). g(t)=f((1-t)c+td), l(t)=(1-t)f(c)+tf(d), c,d(a,b), 0t1.