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   Blog    Page 2   total 29 posts

Simulink
Matlab

Clear Simulink Data Inspector’s Large .dmr File

Simulation Data Inspector is a useful tool to view or compare the simulation results of Simulink. Compared to the Scope block, the Data Inspector is more flexible to use. However, after a period of time, the .dmr file of Data Read more…

By D, 2 years ago
python logo with green background
Coding

Extract symbols’ address and size information from (C6000 DSP) .out file

In order to facilitate the debugging needs of C6000 DSP, I need to obtain the addresses and sizes of all variables inside the DSP. The cg_xml package from TI does not provide variable size information, so I wrote this python Read more…

By D, 2 years ago
The most distinguishable colors
Matlab

The 1000 maximally perceptually-distinct colors

When drawing a graph, we sometimes need to use colors to distinguish different curves. Many years ago, I began to use the Matlab distinguishable_colors function written by Tim Holy to determine the color of the curves used in the paper. Read more…

By D, 3 years3 years ago
Coding

C Language Operator Precedence and Associativity

From the reference link below, I made this C operator table for quick reference. Operator Table Priority Category Operator Associativity 1​ Unary Postfix ++ — Suffix/postfix increment and decrement, e.g., var++;. () Function call, e.g., func (param). [] Array subscripting, Read more…

By D, 3 years3 years ago
Computer

A Linux batch script converting pictures to webp format

The webp format is a picture format launched by Google. Compared with other conventional formats, this format has better compression efficiency. If the client’s browser supports it, our website will send the webp format to reduce the packet size. Based Read more…

By D, 3 years3 years ago
Simulink
Matlab

Plot bold line for Simulink block mask

Recently I discovered an undocumented feature of Simulink, i.e., plot bold line in block mask’s icon drawing commands. Limitations of the plot in icon drawing commands The plot function in the mask is a reduced plotting function. If we specify Read more…

By D, 3 years3 years ago
Chords Envelop in Polygon
Math

The envelope of chords in a polygon

The envelope of chords in a circle has different pattern. By changing the circle to a polygon, we can have another version of envelope.

By D, 3 years3 years ago
Cardioid Chords Envelop
Math

The envelope of chords in a circle, the cardioid, the nephroid, and more line graphs

The envelope of chords in a circle, cardioid (k=2), nephroid (k=3) and other graphs from k = 1 to 129. This page shows 128 different chords patten in total.

By D, 3 years3 years ago
Math Logo
Math

The graphical illustration of sin(x+y)+sin(x-y)

There’s an fixed relationship between sin(x-y), sin(x) and sin(x+y). We can define a sequence from this. Moreover, we can draw some interesting figures.

By D, 3 years3 years ago
Matlab
Matlab

Matlab Continuous to Discrete Transformation with Arbitrary Discretization Pattern

Matlab has **c2d** function to do the continuous to discrete time transformation. However, sometimes you may want to implement your own discretization method. This is what this article aims for.

By D, 3 years3 years ago

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