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m Michael Hardy moved page Moduli of smoothness to Modulus of smoothness: WP:MOS prescribes singular article titles except when there is some special reason to use the plural. |
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==Moduli of smoothness==
<ref>DeVore, Ronald A., Lorentz, George G., Constructive approximation, Springer-Verlag, 1993.</ref>
of a function <math>f\in C[a,b]</math> is the function <math>\omega_n:[0,\infty)\to\mathbb{R}</math> defined by
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