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Mastering Development

Verilog – How to plug values from an output register in a testbench module?

So we were provided with a sequential module in Verilog and have been tasked to create a testbench to show the difference between non-blocking and blocking assignments. Provided code: module sequential_module (A, B, C, D, clk); input clk; output A, B, C, D; reg A, B, C, D; always @(posedge clk) begin A = B; […]

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Mastering Development

How to make a flexbox item in the corner and responsive?

I’m new to css and I want to let five boxes lined up horizontally in the top left corner and the last one stay in the right corner even if you resize the browser.I try to use flex to do this but failed to make the F element in the right corner.Can you tell me […]

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Mastering Development

Creating a hierarchical dictionary with nested lists or dictionaries from 2 lists

I have 2 lists. The first has number denoting what part of the hierarchy that the value in the other list at the same index belongs. I am trying to get dynamic code that could theoretically go to any number of steps. The first 3 work correctly but when I had more steps to the […]

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Mastering Development System & Network

Tomcat9 as windows service or startup.bat

when i start tomcat as a windows service, there are major commands i cannot run within my servlet. running tomcat using the bin/startup.bat file works fine. what is the key difference, and how can i get the tomcat (as windows service) run with the same privilege of the startup bat? for instance running the below […]

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Linux Mastering Development

No version symbols in freshly compiled libstdc++

I’m compiling version 10.1 of GCC using the following configuration: ../configure –build=x86_64-linux-gnu –host=x86_64-linux-gnu –target=x86_64-linux-gnu –prefix=/home/user/toolchain/gcc –enable-checking=release –enable-languages=c,c++,fortran –disable-multilib –enable-shared –enable-gnu-unique-object –with-linker-hash-style=gnu After compilation is finished it seems i don’t have any version symbols in the compiled listdc++.so: > strings ./x86_64-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.28 | grep GLIBCXX GLIBCXX_FORCE_NEW GLIBCXX_DEBUG_MESSAGE_LENGTH (and nothing else) (btw I get the same result if […]

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Mastering Development

r programming- in a data frame how change any number to the column name

A. I have a large xts object which I converted to a data frame so that I could change any number in a column to the first part of the column name. i.e. Date, A-B, A-C, A-D, B-A, B-C, B-D,… 1/1/11 N/A N/A 0.012 N/A 0.055 N/A 1/2/11 0.25 N/A N/A 0.456 N/A 0.12 The […]

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Mastering Development

How to remove c() from a string in R?

Okay I honestly can’t figure this one out but it’s fairly simple to explain. I want to turn this list… c("110N04623","110-04623","110N04625") …into this string: (‘110N04623′,’110-04623′,’110N04625′) I can remove the c easily with str_replace but I need it to look exactly like the above, so single quotes and parentheses. Here’s what I’ve tried: str_replace_all(as.character(bottleneck_df_sql$tmcs[1]),"c","") >> "(\"110N04623\", […]

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User Help Web Apps

Google sheets: How do I convert rows with 45 columns into 15 separate rows, each with 3 columns?

I am working with a google sheet that gets data from an email parser. Each time an email comes in, a single row is created, and fills in these columns: B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, […]

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Mastering Development

How to detect a certain pattern in subsequent lines and appen/prepend text to it in python 3

First of all I’d like to thank everyone who’s going to give a hand. I’d need some help in writing code with python3. Briefly, I’m trying to write a script to clean up gcode files generated with Cura. The difficulty for me is to find a way to tell the program to append or prepend […]

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Mastering Development

How can I make multiple plots in one ggplot?

So I have a dataframe that I want to plot using gglot2 in R. To make you understand what I want Example = I have a table that has 5 columns A, B, C, D, E. I want to plot the graph of A vs B, A vs C, A vs D, A vs E. […]