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@@ -11,7 +11,10 @@ Therefore, set f_min = 20Hz, f_max = 128Hz, we get a new plot:
   
 ![asd_interp_02](uploads/e893aab5c4a32024daddda50754c86e6/asd_interp_02.png)  
 
-$$\hat{x}\left ( f \right )=\int_{-\infty }^{\infty } e^{-2\pi ift}x(t)dt$$
+```math
+\hat{x}\left ( f \right )=\int_{-\infty }^{\infty } e^{-2\pi ift}x(t)dt  
+```
+
 
 ## (4) Whiten signal 
 
@@ -35,7 +38,7 @@ First plot the orignal data:
 Once it get whitened, the plot goes like:  
 ![h_m16_L0.18_l2m2_r300_w](uploads/452bb8b77e4f70a7380b37de91d7af83/h_m16_L0.18_l2m2_r300_w.png)  
  
-The resulting time series no longer has an amplitude between the order of magnitude of 10^-24 to 10^-23. Also, we can plot another 4 whitened merging waveforms:  
+The resulting time series no longer has an amplitude between the order of magnitude of $`10^-24`$ to $`10^-23`$. Also, we can plot another 4 whitened merging waveforms:  
 ![h_m1_L0.9_l2m2_r300_o](uploads/d15614da9bbf6ebe9980e2e4f5ac4d4a/h_m1_L0.9_l2m2_r300_o.png)  
 ![h_m1_L0.9_l2m2_r300_w](uploads/1fdbae194e06c3792d0873e718316439/h_m1_L0.9_l2m2_r300_w.png)  
 ![h_m2_L0.87_l2m2_r300_o](uploads/1d02c68b655a835140011d4ef2773aa6/h_m2_L0.87_l2m2_r300_o.png)