Category: math
Given a four digit calculator, if you rotate it by 180 degree, you may get another ‘valid’ number. For example, 0159 becomes 6510 if rotated 180 degree. The ‘1’ …
A point is chosen randomly in a square. 4 lines are drawn to connect this point with the 4 vertices of this square, such that 4 triangles are formed. …
The Mode of an array (numbers, strings or any other types) is the most frequently one. For example, for integer array , the mode is 1 (appears twice). There …
SteemIt Markdown Editor does not support Latex easily. But one alternative (workaround) is to use the Google Tex Image URL. In particular I like Markdown and Latex because it …
This is a interesting math puzzle: X, Y and Z is an integer between 0 to 9. so what are they? We can write a PowerShell script to search …