英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：


请选择你想看的字典辞典：
单词字典翻译
preconsidered查看　preconsidered　在百度字典中的解释百度英翻中〔查看〕
preconsidered查看　preconsidered　在Google字典中的解释Google英翻中〔查看〕
preconsidered查看　preconsidered　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Graphically solving for complex roots -- how to visualize?
    We can present complex roots to equation on the "complex plane" with one axis for the real part and the other for the imaginary part You can play with, for instance, WolframAlpha, to give it a polynomial equation to solve and get a display of the complex roots If you look up "DeMoivre's Theorem" online, you will find something interesting about the roots of equations $ \ z^n \ = \ c
  • What is a meaning of a complex roots? - Mathematics Stack Exchange
    0 In the simplest sense, what does a complex root on the complex plane actually mean? For polynomial equations a root is a x-coordinate of where the curve crosses the x-axis I just find it strange how the roots of complex numbers are symmetrical about the origin of the complex plane, yet no such symmetry exists for polynomial roots
  • complex numbers - What is $\sqrt {i}$? - Mathematics Stack Exchange
    The square root of i is (1 + i) sqrt (2) [Try it out my multiplying it by itself ] It has no special notation beyond other complex numbers; in my discipline, at least, it comes up about half as often as the square root of 2 does --- that is, it isn't rare, but it arises only because of our prejudice for things which can be expressed using small integers
  • Complex roots of real polynomials and real roots of their derivatives
    Applied to quartic equations with two sets of complex conjugate roots, the theorem implies that in general the roots of the quartic are at the vertices of a quadrilateral in the complex plane and the roots of the derivative (real and otherwise) lie inside this quadrilateral
  • Is there an intuitive way of visualising complex roots?
    The axis of symmetry is the real part of the complex roots; the imaginary part can be found by subtracting the square of the axis (here, $4$) from the intercept ($13-4=9$) and then taking the square root ($3$) This assumes the roots come in conjugate pairs (so the coefficients of your quadratic are real numbers)
  • Relevance of complex roots of a quadratic equation
    But to go further in a mathematical context complex roots are more valuable Without them the Fundamental Theorem of Algebra, which guarentees the existence of - at least - roots for any polynomial, would not work out
  • Explaining the nature of complex roots of a quartic
    Thank you for this I think I will start by demonstrating the distributive and commutative properties of the complex conjugate, then using those to state that if a complex numbers is a root of a polynomial, so is its conjugate, and therefore complex roots must come in conjugate pairs Then I can just list the cases for each order polynomial
  • partial fraction for complex roots - Mathematics Stack Exchange
    Depends on if you want to keep the quadratic polynomial with real coefficients, or factor it with complex roots
  • How to do partial fraction decomposition with complex roots?
    How to do partial fraction decomposition with complex roots? Ask Question Asked 7 years, 3 months ago Modified 7 years, 3 months ago





中文字典-英文字典  2005-2009