diff --git a/docs/simplefoc_library/digging_deeper/theory/FOC_routine.md b/docs/simplefoc_library/digging_deeper/theory/FOC_routine.md
index 475f79f..dbbd23a 100644
--- a/docs/simplefoc_library/digging_deeper/theory/FOC_routine.md
+++ b/docs/simplefoc_library/digging_deeper/theory/FOC_routine.md
@@ -50,10 +50,18 @@ Sinusoidal modulation is based on two transformation equations.
 <img src="../extras/Images/foc_modulation.png" >
 
 Inverse Park transformation:<br>
-<img src="../extras/Images/inverse_park.png" style="margin-left:50px;margin-top:10px;margin-bottom:10px;width:150px"><br>
+
+$$U_{\alpha} = U_q sin(\theta)$$
+
+$$U_{\beta} = U_q cos(\theta)$$
+
 Inverse Clarke transformation:<br>
-<img src="../extras/Images/inverse_clarke.png" style="margin-left:50px;margin-top:10px;margin-bottom:10px;width:180px">
 
+$$u_a = U_{\alpha}$$
+
+$$u_b = \frac{-U_{\alpha} + \sqrt{3}U_{\beta}}{2}$$
+
+$$u_c = \frac{-U_{\alpha} - \sqrt{3}U_{\beta}}{2}$$
 
 Here is the code of implementation of the Sinusoidal PWM in the <span class="simple">Simple<span class="foc">FOC</span>library</span>:
 ```cpp
@@ -229,4 +237,4 @@ But every motor is a bit different and you can check these values empirically on
 
 ## Further read
 
-For more info about the initialization procedure, real-time execution and the implementation details please visit [FOC implementation docs](foc_implementation).
\ No newline at end of file
+For more info about the initialization procedure, real-time execution and the implementation details please visit [FOC implementation docs](foc_implementation).