triangle symbol unicode

When using the MathType mathematical formula editor to edit the formula, sometimes there will be mathtype mathematical symbol anomalies, not displayed correctly, but also not garbled, such as the MathType summation symbol is shown as the black triangle, in this case how to solve it?If you have any questions, you can go directly to: http://www.mathtype.cn/wenti/qi

Symbol trianglesTime limit:2000/1000 MS (java/others) Memory limit:32768/32768 K (java/others)Total submission (s): 1246 Accepted Submission (s): 664The 1th line of the problem description symbol triangle has n a symbol consisting of "+" and "-", with 1 fewer symbols per line, and 2 under the same number as "+", and 2

problem DescriptionThe 1th line of the symbol triangle has n a symbol consisting of "+" and "-", each line is 1 less than the upstream, 2 are "+" under the same number, and 2 are "-" under the different number. Calculates how many different symbol triangles have the same number of "+" and "-". The 1

Test instructions The 1th line of the symbol triangle has n a symbol consisting of "+" and "-", each line is 1 less than the upstream, 2 are "+" under the same number, and 2 are "-" under the different number. Calculates how many different symbol triangles have the same number of "+" and "-". Exercises We will + think

Html>Head>Metacharset="UTF-8" >Title>testTitle>Style> . Tip{PositionRelativeBackground-color:Deepskyblue;Margin 20px Auto;Width 246px;Height 43px;Line-height: 43px;ColorWhiteText-align:CenterBorder-radius: 10px;Font-family:Sans-serif;}. Tip: After{Content ‘‘;PositionAbsoluteWidth 0;Height 0;Border 8PX solid;}. Top: After{Border-bottom-color:Deepskyblue;Left 50%;Bottom 100%;Margin-left:-15px;}. Right: After{Border-left-color:Deepskyblue;Left 100%;Top 50%;Margin-top:-7px;}. Bottom: After{Border-to

Implementation method:With an empty inline block, the width height is set to 0, one side of the border is set to visible, the other three-sided border is set to transparent, and the border width, the visible border is rendered as a triangle.Analog Code:CSS section:. caret-left > Span {display:inline-block; width:0; height:0; Vertical-align:middle; Margin-bottom:0.1em; Border-right:0.4em dashed; Border-top:0.4em solid Transparent; Border-bottom:0.4em solid Transparent;}. Caret-left:before {

Brute force table creation. 1 #include [Hdoj] 2510 symbol triangle