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这是cmake之后的
Boost version: 1.58.0
-- Found the following Boost libraries:
-- system
-- filesystem
-- thread
-- date_time
-- iostreams
-- serialization
-- chrono
-- atomic
-- …
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高博您好，运行ch5中join时出现段错误 (核心已转储)
zhilong@zhilong:~/slambook/ch5/joinMap/build$ make
Scanning dependencies of target joinMap
[ 50%] Building CXX object CMakeFiles/joinMap.dir/joinMap.cpp.o
[100%] Link…
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运行例程ch5 中的点云拼接程序，报错
Process finished with exit code 139 (interrupted by signal 11: SIGSEGV)
大概是溢出的问题，具体原因不得而知。
定位问题 到代码第36行：
poses.push_back( T );
修改意见：将poses定义为数列。
第15行： vector poses; …
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p.b=color.data[v * color.step+u * color.channels()]这句话是什么意思呢？？
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This was much harder to follow than the other three in this chapter. I think it would have been helpful to first have had the gluon port of what the other three do, so we can compare speed, readabilit…
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Hi,
I'm using version 1.7.6 and I noticed CH5 and 6 being incorrectly taken from the variable switches when in student mode.
I have the auxiliary channels assigned as follows:
-CH5 SwD
-CH6 SwC
…
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https://love2.io/@meiritugua/doc/gopl-zh/ch5/ch5-04.md 最后的部分
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同kedevelop build之后显示：
[ 50%] Building CXX object CMakeFiles/joinMap.dir/joinMap.cpp.o
:0:15: warning: ISO C++11 requires whitespace after the macro name
[100%] Linking CXX executable joinMap
/usr/…
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老师你好，最近在看机器学习-白板推导系列视频，有一个小问题，在第五章降维部分的P3，推导最大投影方差时，计算J(u_1)时用到了(x_i-x_ba)*u_1为一个实数，因此可以对调写成u_1*(x_i-x_ba),这里怎么说明它是一个实数呢？