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汉语拼音：pàn bié shì

用以判别一元n次方程是否有重根的表达式。如一元二次方程ax２+bx+c=0的判别式是δ=b２-4ac，当δ=0时，方程有二重根。

• By applying the "super solution- sub solution" method, a simple descriminat is obtained for the existence of positive entire solutions.

  本文讨论一类半线性椭圆方程，应用“上解-下解”的方法，得到正整解存在性的一个简单的判别式。

• The results showed that the criterion can correctly predict whether stick-slip will occur directly from working parameters.

  实验结果表明，使用该判别式能够直接根据工况参数正确预测气缸是否出现爬行现象。

• The stability criterion is pointed out in this paper.

  提出了深井巷近稳定性判别式；

• Results: The consistent homology rate of the prognosis within the group was 82. 4% .

  结果：预后分析判别式组内回代一致符合率82.

• MCRF of discriminate model can accommodate any of the non-independent features, which makes full use of information in the image.

  mCRF模型属于判别式模型，可以容纳任意的非独立特征，从而充分利用图像本身信息。

• Three Easy- to- be- neglected problems in Answering Maths Questions with Discriminant

  用判别式解题易忽视的三个问题

• Discriminant of Position Relationship between an Ellipse and a Quadratic Curve

  平面椭圆与二次曲线间位置关系的判别式

• Closed Form of Discriminants about Elements of Some Type of Algebra Fields and Polynomials

  多项式与一类代数数域域元素的判别式的闭形式

• Discriminant Deduction of Decomposable Corrosion pHs for Groundwater Acting on Concrete

  地下水对混凝土的pHs分解性侵蚀判别式