hello!i use simulate signal Generating a sine wave ;and Then read the file(The chart below);We all know dt is the distance between data points,So I want to change the value of dt,so I think this can change the frequency of the output signal ,But when I put the signal output to the oscilloscope ,No matter how I change the dt value, but did not change the frequency output,I do not know why!!!Appreciate any help or tips,thanks!