YuehChuan

import torch
import torch.nn as nn

# an Embedding module containing 10 tensors of size 3
embedding = nn.Embedding(6, 3)
# a batch of 2 samples of 3 elements each
input = torch.LongTensor([[1, 2, 3],[0,2,3]])
loss=torch.sum(embedding(input))
print("embedding" )
print(embedding.weight )

YuehChuan

cmake_minimum_required(VERSION 2.8.3)
project(sync_example)

find_package(catkin REQUIRED COMPONENTS message_filters roscpp sensor_msgs)

catkin_package(
  CATKIN_DEPENDS message_filters roscpp sensor_msgs
)

include_directories(${catkin_INCLUDE_DIRS})

YuehChuan

import argparse
import multiprocessing
from math import ceil
import torch
from torch.utils import data
from torchvision import datasets, transforms


class FiniteRandomSampler(data.Sampler):
    def __init__(self, data_source, num_samples):

YuehChuan

YuehChuan

#!/bin/sh                                                                    
printf "\n$(cat ascii.txt)\n"

YuehChuan

                                
            .....               
          .........             
         .  ..  ....            
         .  ..  ....            
    .  .............            
    ..[

YuehChuan

#include <stdio.h>
#include <stdlib.h>

//function pointer
typedef int (*MathMethod)(int, int);                                            
 
int Mul(int a, int b) { return a*b; }
float Divide(int a, int b) { return a/b; }
int Minus(int a, int b) { return a-b; }
int Add(int a, int b) { return a+b; } 

YuehChuan

#include <iostream>
#include <memory>
void foo( const std::shared_ptr<int> p)
{
    static int x = 0;
    *p = ++x;
   // printf("address p %p \n",p);
   // printf("value x %d \n",x );
   // printf("value p %d \n",*p);
}

YuehChuan

corleone@corleone:~$ roscore
... logging to /home/corleone/.ros/log/82647bda-509f-11ea-85b2-6cf049e820ae/roslaunch-corleone-17865.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://corleone:45267/
ros_comm version 1.14.3

YuehChuan

corleone@corleone:~$ sudo apt install ros-melodic-desktop
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  amd64-microcode apg apport-symptoms aptdaemon-data command-not-found-data diffstat gettext gir1.2-goa-1.0 gir1.2-snapd-1 gir1.2-vte-2.91 gnome-control-center-faces gnome-online-accounts
  gnome-software-common intel-microcode intltool-debian iucode-tool libapt-pkg-perl libarchive-zip-perl libcgi-fast-perl libcgi-pm-perl libclass-accessor-perl libclone-perl libcolord-gtk1
  libemail-valid-perl libexporter-tiny-perl libfcgi-perl libgtop-2.0-11 libgtop2-common libio-pty-perl libio-string-perl libipc-run-perl liblist-moreutils-perl libllvm8 libnet-dns-perl
  libnet-domain-tld-perl libnet-ip-perl libnss-myhostname libparse-debianchangelog-perl libperlio-gzip-perl libsodium23 libtext-levenshtein-perl libwhoopsie-preferences0 libxatracker2 libxml-libxml-perl
  libxml-namespacesupport-