quadratic term meaning in English
二次项
平方项
Examples
- Bifurcation analysis of non - linear dynamic system with a quadratic term
含平方项非线性动力系统的分岔研究 - Firstly part of quadratic term of taylor series is chosen ; a low - dimension surface is used to approximate limit state surface ; and the modified reliability formula is derived
首次选取泰勒级数的部分二次项，用一个距原点最近点处拟合的超低维曲面近似极限状态面。 - Recently , yamashita and fukushima [ 4 ] show that the sequence produced by the levenberg - marquardt method converges quadraticlly to the solution set of the equations , if the parameter is chosen as the quadratic norm of the function and under the weaker condition than the nonsingularity that the function provides a local error bound near the solution . however , the quadratic term has some unsatisfactory properties
最近yamashita & fukushima [ 4 ]提出，在弱于非奇异性条件的局部误差界条件下，如果选取的迭代参数为当前迭代点处函数值模的平方，则levenberg - marquardt方法产生的迭代点列二阶收敛于方程组的解集。 - When the membrane deforms parabolid , the geometry and equilibrium equation are educed in the condition of large displacement , large rotation and small strain . that is to say , the expression of strain should include quadratic term of displacement and equilibrium equation should be established after the structure had deformed
对于大位移、大转角和小应变条件下的薄膜结构,在压力作用下变形到抛物面时,推导出其几何方程和平衡方程,即应变表达式应包括位移的二次项,平衡条件应建立在变形后的位形上。 - 2 the theoretical values of the second virial coefficient are precisely fitted into some simple expressions . according to one of them , a new temperature function for the quadratic terms in cubic equations was derived : the function is simple , general , without acentric factor , truly predictive , theoretically sound , and applicable to all the van der waals - type equations
2将第二维里系数的理论值较精确地拟合为几种简单的表达式，并据此导出了立方型状态方程中二次项温度函数的新形式该式简单、通用，不含偏心因子，具有真正的预测功能和坚实的理论基础，原则上适用于所有vanderwaals型方程。