Here you have a relevant pdf for this kind of wishes. If you can get it it's a wonder !

http://www.math.usm.edu/dont_panic/draft1.pdf



Le 27/01/2018 à 00:55, John H Palmieri a écrit :
If you tried "-4sin(2x-pi)", maybe try instead "-4*sin(2*x-pi)" -- include * for multiplication.

On Friday, January 26, 2018 at 1:11:51 PM UTC-8, benjamin gonzalezjr wrote:

    Good afternoon, my name is Benjamin Gonzalez Jr.
    I need help on how to graph -4sin(2x-pi) on cocalc/sage. I tried
    everything I could but unfortunately I wasn't able to. I need to
    plot it and figure out x mins, xmax, etc...... also amplitude,
    phase, period, midpoint, etc. Thanks you so much! Please answer as
    soon as possible. Thanks!

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