expansion

问题 I have the follow code: ECHO OFF :LOOP set c= setlocal ENABLEDELAYEDEXPANSION tasklist | find /i "calc.exe" >nul 2>&1 IF %ERRORLEVEL% == 0 ( ECHO easymeetingOnCall is running taskkill /IM calc.exe /F set c=true Timeout /T 10 goto LOOP ) ELSE ( IF "!c!" == "true" ( ECHO l'applicazione easymeetingOnCall è spenta. Timeout /T 10 goto exitLoop ) ECHO easymeetingOnCall is not running Timeout /T 5 /Nobreak GOTO LOOP ) :exitLoop My problem is that the follow condition IF "!c!" == "true" Into the else

问题 I have the follow code: ECHO OFF :LOOP set c= setlocal ENABLEDELAYEDEXPANSION tasklist | find /i "calc.exe" >nul 2>&1 IF %ERRORLEVEL% == 0 ( ECHO easymeetingOnCall is running taskkill /IM calc.exe /F set c=true Timeout /T 10 goto LOOP ) ELSE ( IF "!c!" == "true" ( ECHO l'applicazione easymeetingOnCall è spenta. Timeout /T 10 goto exitLoop ) ECHO easymeetingOnCall is not running Timeout /T 5 /Nobreak GOTO LOOP ) :exitLoop My problem is that the follow condition IF "!c!" == "true" Into the else

问题 Do we need to call wordfree upon wordexp failure? Calling wordfree seems to segfault in some cases (eg when wordfree returns error code with string is "foo 'bar"). This isn't clear from man page, and I've seen wordfree used in some error cases. 回答1: According to the GNU's manual example, it should be called on error only if WRDE_NOSPACE was returned: switch (wordexp (program, &result, 0)) { case 0: /* Successful. */ break; case WRDE_NOSPACE: /* If the error was WRDE_NOSPACE, then perhaps part

问题 On the link http://www.ccs.neu.edu/home/ryanc/macro-stepper/tutorial.html there are instructions for working with the macro stepper. However, when I'm going to try it, I can't get the second expansion of myor in the definition of nonzero? function, only the first. Also, I have no buttons "Previous term" and "Next term". So my question is: how i must configure macro stepper to get the second expansion, like in tutorial? 回答1: I'm assuming that your source program looked something like this:

问题 On the link http://www.ccs.neu.edu/home/ryanc/macro-stepper/tutorial.html there are instructions for working with the macro stepper. However, when I'm going to try it, I can't get the second expansion of myor in the definition of nonzero? function, only the first. Also, I have no buttons "Previous term" and "Next term". So my question is: how i must configure macro stepper to get the second expansion, like in tutorial? 回答1: I'm assuming that your source program looked something like this:

问题 On the link http://www.ccs.neu.edu/home/ryanc/macro-stepper/tutorial.html there are instructions for working with the macro stepper. However, when I'm going to try it, I can't get the second expansion of myor in the definition of nonzero? function, only the first. Also, I have no buttons "Previous term" and "Next term". So my question is: how i must configure macro stepper to get the second expansion, like in tutorial? 回答1: I'm assuming that your source program looked something like this:

问题 In a script.sh, source a.sh source b.sh CMD1 CMD2 CMD3 how can I replace the source *.sh with their content (without executing the commands)? I would like to see what the bash interpreter executes after sourcing the files and expanding all variables. I know I can use set -n -v or run bash -n -v script.sh 2>output.sh , but that would not replace the source commands (and even less if a.sh or b.sh contain variables). I thought of using a subshell, but that still doesn't expand the source lines.

问题 In a script.sh, source a.sh source b.sh CMD1 CMD2 CMD3 how can I replace the source *.sh with their content (without executing the commands)? I would like to see what the bash interpreter executes after sourcing the files and expanding all variables. I know I can use set -n -v or run bash -n -v script.sh 2>output.sh , but that would not replace the source commands (and even less if a.sh or b.sh contain variables). I thought of using a subshell, but that still doesn't expand the source lines.

问题 I'm trying to approximate e^x using the Maclaurin series in a function called my_exp(x) , I believe everything I've done so far is right but I'm getting incorrect approximations for whatever number I try. import math for i in range (x): exp = 1 + ((x**i)/math.factorial(i)) print(exp) For example, whenever I try my_exp(12) I get 18614.926233766233 instead of 162754.79141900392 Help? 回答1: Your problem is that the e^x series is an infinite series, and so it makes no sense to only sum the first x

问题 I'm trying to approximate e^x using the Maclaurin series in a function called my_exp(x) , I believe everything I've done so far is right but I'm getting incorrect approximations for whatever number I try. import math for i in range (x): exp = 1 + ((x**i)/math.factorial(i)) print(exp) For example, whenever I try my_exp(12) I get 18614.926233766233 instead of 162754.79141900392 Help? 回答1: Your problem is that the e^x series is an infinite series, and so it makes no sense to only sum the first x