How does the sine wave block in Simulink work?

I put two sine wave blocks in my Simulink model,whose parameters were both set like this.

However, as shown below, when I calculated the outputs accroding to the given equation at "Tm = 1.5775044732012777", neither of the results displayed in the Simulink Debugger were the same as my calculation and they were even different from each other.

I'm quite confused.