对数

A smooth curve fitted to the set of paired data in regression analysis; for linear regression the curve is a straight line.

在回归分解中相对于一批对数的光滑曲线；对线性回归来说曲线是直线。

In their logistic regression models to establish odds ratios, the authors adjusted for demographics; other established risk factors for melanoma, including numbers of nevi and extent of freckling; and any use of exogenous hormones.

在他们确立优势比的对数回归模型中，作者 adjusted for demographics ；确定的其他黑素瘤危险因子包括痣的个数和大小，还有外源激素的使用情况。

The general Fredholm integral equation of the first kind with logarithmic kernel in 2 dimensions does not always have unique solution, especially for the unbounded problem, it depends on the asymptotic behaviour at infinity.

对二维问题，一般的带对数积分核第一类Fredholm 积分方程并不总是唯一可解的，特别是对外边值问题，解在无穷远处的形态有很大的影响。

This paper is a continuation of the author's Previous article [ 6 ] on a grap- hical analysis of stationary free oscillation in a nonlinear automatic conttol syetem by tha method of logarithmic characteristics.

本文是作者前一篇论文［6］的续文。在前一篇论文中提出了非线性自动调整系统稳态自振荡的对数分析法。

This paper proves strictly the soundness of a formula of the logarithm function of a complex variable and points out the wrong conclusion concerning it in《Engineering Mathematics-Functions of a Complex Variable》compiled by the Mathematics Teaching and Research Section of Xi an Jiaotong University.

本文严格证明了关于复变量对数函数的一个公式的正确性，同时指出了西安交通大学数学教研室编写的《工程数学———复变函数》一书中有关结论的错误。

For example, there is a separate function gammaln just to return the logarithm of the gamma function.

例如，有一个单独的函数gammaln只是返回伽玛函数的对数。

The monotonicity and logarithmically complete monotonicity properties for the Gamma function are obtained.

摘要伽玛函数的单调性质和对数完全单调性质被获得了。

Since the gamma function grows very quickly, it can easily overflow, and so the logarithm of the gamma function is often more useful than the gamma function itself.

由于伽玛函数的生长速度非常快，很容易溢出，所以伽玛函数的对数通常比更有用伽玛函数本身。

This model can analyze the regression relation between covariate and log survival time, and its form and explanation of regression coefficient is close to the general linear regression equation, the explanation of analysis results is more simple, more direct and easier to understand than that of proportional hazard function model.

AFT模型研究协变量与对数生存时间之间的回归关系，模型的形式与对回归系数的解释与一般的线性回归方程相似，而对分析结果的解释则较比例风险回归模型简单、直观，更易于理解。

The applications of Matlab in engineering calculation of unit operations by exemplifying several typical calculations involved nonlinear equation,interpolation,numerical integration,graphic method and log coordinate drawing are discussed.

以几个典型问题为例，讨论了Matlab在求解非线性方程及方程组、插值法获取物性参数、积分、绘图计算及对数坐标图的绘制等化工原理工程计算中的应用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。