Need help in sepcific sine wave formula

[saptarsheeclinics]

i seek help in creating prompt/ formula for multi frequency sine wave generation
details

1. i want to create multiple sine /square waves ans ave it as merged
2. after every specific cycles eg 7 or 13 cycles of sine/square wave i have to have phase change of 180degree ( please refer to the picture)

thank you
i will be very greatful for the help in creation of this formula

[LWinterberg]

Hello, this is a display bug. It’ll be fixed in 3.7.2.

[saptarsheeclinics]

hi, this is not the display bug shown in given figure, it is sine wave purposefully used in 180 degree phase shift, and i want to rectreate the formula accoring to the figure, i am seeking help in the forum for the same