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Setting and resetting options is lengthy in command mode. WithOptions() allows to evaluate a function with temporary set options.
WithOptions(optlist, expr)a list with new option settings.
the expression to be evaluated
the function result
# NOT RUN {
# original:
print((1:10)^-1)
# with new options
WithOptions(list(digits=3), print((1:10)^-1))
# }
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