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7 Error Functions, Dawson’s and Fresnel IntegralsProperties

§7.3 Graphics

Contents
  1. §7.3(i) Real Variable
  2. §7.3(ii) Complex Variable

§7.3(i) Real Variable

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Figure 7.3.1: Complementary error functions \operatorname{erfc}x and \operatorname{erfc}\left(10x\right), -3\leq x\leq 3. Magnify
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Figure 7.3.2: Dawson’s integral F\left(x\right), -3.5\leq x\leq 3.5. Magnify
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Figure 7.3.3: Fresnel integrals C\left(x\right) and S\left(x\right), 0\leq x\leq 4. Magnify
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Figure 7.3.4: |\mathcal{F}\left(x\right)|^{2}, -8\leq x\leq 8. Fresnel (1818) introduced the integral \mathcal{F}\left(x\right) in his study of the interference pattern at the edge of a shadow. He observed that the intensity distribution is given by {\left|\mathcal{F}\left(x\right)\right|}^{2}. Magnify

§7.3(ii) Complex Variable

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Figure 7.3.5: |\operatorname{erf}\left(x+iy\right)|, -3\leq x\leq 3, -3\leq y\leq 3. Compare §7.13(i). Magnify 3D Help
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Figure 7.3.6: |\operatorname{erfc}\left(x+iy\right)|, -3\leq x\leq 3, -3\leq y\leq 3. Compare §§7.12(i) and 7.13(ii). Magnify 3D Help