| 单词 | theta-sounding |
| 释义 | > as lemmastheta-sounding b. attributive and in other combinations, as theta-sounding adj.; theta-function n. in Mathematics, a name for two different functions: (a) the sum of a series from n = − ∞ to n = + ∞ of terms denoted by exp(n2a + 2na); also extended to a similar function of several variables; (b) a function occurring in probabilities, expressed by the integral ∫exp(-t2)dt. theta-phi diagram n. the temperature-entropy diagram, which represents the heat-units converted into work per pound of working fluid (θ = absolute temperature, and ϕ = entropy). ΘΚΠ the world > relative properties > number > algebra > [noun] > expression > function function1758 exponential1784 potential function1828 syzygy1850 permutant1852 Green function1863 theta-function1871 Greenian1876 Gudermannian1876 discriminoid1877 Weierstrassian function1878 gradient1887 beta function1888 distribution function1889 Riemann zeta function1899 Airy integral1903 Poisson bracket1904 Stirling approximation1908 functional1915 metric1921 Fourier transform1923 recursive function1934 utility function1934 Airy function1939 transfer function1948 objective function1949 restriction1949 multifunction1954 restriction mapping1956 scalar function1956 Langevin function1960 mass function1961 the world > matter > physics > mechanics > dynamics > thermodynamics > [noun] > entropy > specific diagram theta-phi diagram1901 1871 M. Collins Marquis & Merchant III. iii. 88 You [English] are a theta-sounding people. 1879 A. Cayley Coll. Math. Papers X. 475 We have thus an addition-with-subtraction theorem for the double theta-functions. 1901 Pract. Engineer Pocket Bk. 166 The temperature-entropy diagram is usually called the θϕ (theta-phi) diagram. < as lemmas |
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