how to use vectorization and integral on erf function and erfc function?

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Henry B.
Henry B. on 27 May 2021
Edited: Torsten on 28 May 2021
Im trying to code for these equations but my math background isnt on par with this level yet. I appreciate any help on my final!
My guess would be use the values that my graph of 1-erf(z) gave me but Im not sure my graph is correct because only one of the values matched the graph erfc(z).
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Torsten
Torsten on 28 May 2021
@Henry:
Why do you modify my code for the calculation of erfc by prescribing n as (1:6) ? n, the number of terms needed to approximate erfc(z) within a specified tolerance, is calculated within erfc depending on the magnitude of term. For higher values of z, the n also has to increase. So first try to understand what the code does before starting to modify it.

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