Note: This blog post all source code is:Git Repo.1. Source code is written in Ubuntu14.04 + Indigo environment. First, the transformation matrixAfter a blog introduction, we've got Rob an arm of the d-h parameter table, as shown in the table above,
1. Coordinate system:Flash coordinate system and mathematical coordinate system: the X axis is the same, and the y axis is the opposite.[Mathematical coordinate system][Coordinate system in Flash]2. Conversion between Angle and Radian:(1) radians:
Name
Abs
Category
Mathematical functions
Prototype
Abs (number)
Parameters
Must be selected. The number argument is a valid numeric expression of any type
"Return value"
Type of same number
"Exception/Error"
No
Description
Returns the absolute value
Introduction to the formula of sin function
Grammar: SIN (number)
Number is the angle, in radians, that requires a sine.
Note: If the unit of the parameter is degrees, you can multiply PI ()/180 or use the RADIANS function to convert it to
Recently, I learned about Android Image Processing in the system (I collected some information on the Internet and compiled my own testing program.) Here I will summarize:
I. colormatrix class
Colormatrix is a 5x4 matrix. The first line indicates
Name
Abs
Category
Mathematical functions
Prototype
Abs (number)
Parameters
Must be selected. The number argument is a valid numeric expression of any type
"Return value"
Type of same number
"Exception/Error"
No
Description
Returns the
What is coordinate rotation?
For example, after the (blue) Ball rotates a angle around a center point and reaches the position of the (red) Ball, the coordinates of the relative center of the red ball are:
X1 = DX * Cos (a)-dy * sin ()
Y1 =
Classical Algorithm Research series: Ten, from beginning to end thoroughly understand the Fourier transform algorithm, the next
Author: July, Dznlong February 22, 2011
Recommended reading: Thescientist and Engineer ' s Guide to Digital Signal
Gnuplot tips from http://hi.baidu.com/tsuihan/blog/item/eca435a8e386b4b0ca130c7b.html
Usage tips of gnuplot
1. Output Format
Gnuplot> set terminal X11 % output to the screen (Linux)
Gnuplot> set terminal postscript portrait noenhanced monochrome
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