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yacas:tldr:7a46f
yacas: Execute and print the result of one statement, then exit.
$ echo "${Echo( Deriv(x)Cos(1-x) );}" | yacas -p -c /dev/stdin
try on your machine
This command is using the Yacas computer algebra system to evaluate the expression "${Echo( Deriv(x)Cos(1-x) );}". Here's how it works:
- The expression "${Echo( Deriv(x)Cos(1-x) );}" is enclosed in double quotes and passed as input through the
echo
command. - The
echo
command outputs the expression string to the standard output. - The pipe symbol (|) is used to redirect the standard output of the
echo
command as the input for the next command, which isyacas
. - The
yacas
command starts the Yacas computer algebra system. - The "-p" option is used to enter the interactive input mode of Yacas, where the prompt is displayed for further input.
- The "-c" option is used to execute the Yacas commands provided through the standard input.
- "/dev/stdin" represents the file path for the standard input stream.
- The expression "${Echo( Deriv(x)Cos(1-x) );}" is then read by Yacas from the standard input and evaluated.
- The resulting output will be displayed in the terminal.
In summary, this command simply uses Yacas to compute the derivative of "Cos(1-x)" with respect to "x" and outputs the result.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.