positive angle

With a variational method and a modified arrangmement channel quantum mechanics(MACQM) method,the energies of a equilateral triangle H-3 and a tetrahedron H-4 system are calculated.

采用改进排列通道量子力学(Modified Arrangement Channel Quantum Mechanics,简称MACQM)方法和变分法,计算了H3体系正三角形和H4体系的正四面体结构的能量曲线。

Fraunhofer diffraction light intensity distribution of the equilateral triangle and the equilateral hexagon pore;

正三角形与正六边形夫琅和费衍射光强分布

Symmetry of eigenfunctions on equilateral triangles

正三角形上本征函数的对称性

Using the variational method and the modified arrangmement channel quantum mechanics(MACQM) method,the energy curve of the equilateral triangle structure of H_3 has been calculated.

采用改革排列通道量子力学方法和变分法,计算了H3体系正三角形构型的能量,当原子核的间距R=1 74a0时,体系能量有最低值-1 58161a。

an equilateral triangle

等边三角形,正三角形

trigonal hybrid orbital

正三角形杂化轨函数

Diamond;Triangle Down;Triangle Up;Arrow Down;Arrow Up;Star;Circle

菱形;倒三角形;正三角形;向下箭头;向上箭头;星形;圆形

Diamond;Triangle Down;Triangle Up;Arrow Down;Arrow Up;Star;Circle;None

菱形;倒三角形;正三角形;向下箭头;向上箭头;星形;圆形;无

an octahedron with eight equilateral triangles as faces.

有八个正三角形面的八面体。

Conbining rotation to find the smallest regular triangle containing a polygon;

结合旋转求包含多边形的最小正三角形

Triangle, rectangle, square

三角形，长方形，正方形

Line, circle, square and triangle

直线，圆形，正方形，三角形

a square equivalent to a triangle

同三角形等积的正方形

Triangle, rectangle, aquare and circle!

三角形，长方形，正方形和圆形！

The reciprocal of the tangent of an angle in a right triangle.

余切直角三角形中角的正切的倒数

The reciprocal of the sine of an angle in a right triangle.

余割直角三角形中一个角正弦的倒数

It can make triangle, rectangle, positive five Squareness, positive hexagon, roundness and so on.

可以折三角、矩形、正五方形、正六方形、圆弧等形状。

Draw a diagonal line to divide the square into two triangle

画一条对角线,把正方形分成两个三角形

Draw a diagonal line to divide the square into two triangles.

画一条对角线,把正方形分成两个三角形。

a regular polygon formed by completing two equilateral triangles from a regular hexagon.

来自于正六角形的两个完全等边三角形组成的正多边形。

Such designs were square, diamond, triangular or hexagonal shaped pellet areas.

这些设计是正方形的，菱形的，三角形的或六角形的小格区域。

Distance-regular Graphs with Kite-free or Triangle-free

不含kite或三角形的距离正则图