6 files changed, 256 insertions, 4 deletions
diff --git a/gr-input/grc/CMakeLists.txt b/gr-input/grc/CMakeLists.txt
index 10bc2d8ad..1b604feb2 100644
--- a/gr-input/grc/CMakeLists.txt
+++ b/gr-input/grc/CMakeLists.txt
@@ -30,26 +30,42 @@ install(FILES
 )
 
 install(FILES
-    Transfer_Function_Numerator.xml
+    Transfer_function_Numerator.xml
     DESTINATION ${GRC_BLOCKS_DIR}
     COMPONENT "input_python"
 )
 
+
+
 install(FILES
-    Transfer_Function_Denominator.xml
+    Transfer_function_Denominator.xml
     DESTINATION ${GRC_BLOCKS_DIR}
     COMPONENT "input_python"
 )
 
+
 install(FILES
-    Calculation_Calculator.xml
+    Transfer_function_Denominator.xml
+    DESTINATION ${GRC_BLOCKS_DIR}
+    COMPONENT "input_python"
+)
+
+install(FILES
+    Transfer_function_Response.xml
+    DESTINATION ${GRC_BLOCKS_DIR}
+    COMPONENT "input_python"
+)
+
+install(FILES
+    Calculation_Roots.xml
     DESTINATION ${GRC_BLOCKS_DIR}
     COMPONENT "input_python"
 )
 
 install(FILES
-    Transfer_Function_Transfer_Function.xml
+    Calculation_Calculator.xml
     DESTINATION ${GRC_BLOCKS_DIR}
     COMPONENT "input_python"
 )
 
+
diff --git a/gr-input/grc/Calculation_Calculator.xml b/gr-input/grc/Calculation_Calculator.xml
index 4a29b896e..070712f57 100644
--- a/gr-input/grc/Calculation_Calculator.xml
+++ b/gr-input/grc/Calculation_Calculator.xml
@@ -37,4 +37,29 @@ self.$(id).set_parameters($Exp,$num_inputs)</make>
     <name>out</name>
     <type>float</type>
   </source>
+
+<doc>
+
+Variable names must be a0,a1,a2 and so on.
+
+You can use maximum 10 variables per block.
+
+Example to add 5 variables:
+
+"a0+a1+a2+a3+a4"
+
+To perform Exponential(power) calculations on operators use the following:
+
+a0**a1 
+
+To perform calculations like sqrt, log or exp use the following:
+
+sqrt(a4)
+
+log(a2)
+
+exp(a8)
+
+</doc>
+
 </block>
diff --git a/gr-input/grc/Calculation_Roots.xml b/gr-input/grc/Calculation_Roots.xml
new file mode 100644
index 000000000..9871cad5a
--- /dev/null
+++ b/gr-input/grc/Calculation_Roots.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0"?>
+<block>
+  <name>Roots</name>
+  <key>Calculation_Roots</key>
+  <category>Calculation</category>
+  <import>import gnuradio.input.Roots</import>
+  <make>gnuradio.input.Roots.Roots($order)</make>
+
+<param>
+   <name>Order of transfer function</name>
+   <key>order</key>
+   <value>samp_rate</value>
+   <type>real</type>
+
+</param>
+
+  <sink>
+    <name>in</name>
+    <type>float</type>
+  </sink>
+<!--
+  <sink>
+  <name>in1</name>
+  <type>float</type>
+  <nports>4</nports>
+  </sink> -->
+
+  
+  <source>
+    <name>out</name>
+    <type>float</type>
+    <nports>2*$order</nports>
+  </source>
+</block>
diff --git a/gr-input/grc/Transfer_function_Denominator.xml b/gr-input/grc/Transfer_function_Denominator.xml
new file mode 100644
index 000000000..2ba936580
--- /dev/null
+++ b/gr-input/grc/Transfer_function_Denominator.xml
@@ -0,0 +1,49 @@
+<?xml version="1.0"?>
+<block>
+  <name>Denominator</name>
+  <key>Transfer_function_Denominator</key>
+  <category>Transfer_function</category>
+  <import>import gnuradio.input.Denominator</import>
+  <make>gnuradio.input.Denominator.Denominator($num_inputs)</make>
+
+<param>
+<name>Order of Transfer Function</name>
+<key>num_inputs</key>
+<value>1</value>
+<type>int</type>
+</param>
+
+  <sink>
+    <name>in0</name>
+    <type>float</type>
+    <nports>1+$num_inputs</nports>
+  </sink>
+<!--
+  <sink>
+  <name>in1</name>
+  <type>float</type>
+  <nports>4</nports>
+  </sink> -->
+
+  
+  <source>
+    <name>out</name>
+    <type>float</type>
+  </source>
+
+<doc>
+
+This will take the coefficient values for the Denominator.
+
+in00 = value of the coefficient of  s^0
+
+in01 = value of the coefficient of  s^1
+
+in02 = value of the coefficient of s^2
+
+and so on..
+
+</doc>
+
+
+</block>
diff --git a/gr-input/grc/Transfer_function_Numerator.xml b/gr-input/grc/Transfer_function_Numerator.xml
new file mode 100644
index 000000000..1ad34f316
--- /dev/null
+++ b/gr-input/grc/Transfer_function_Numerator.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0"?>
+<block>
+  <name>Numerator</name>
+  <key>Transfer_function_Numerator</key>
+  <category>Transfer_function</category>
+  <import>import gnuradio.input.Numerator</import>
+  <make>gnuradio.input.Numerator.Numerator($num_inputs)</make>
+
+<param>
+<name>Order of Transfer Function</name>
+<key>num_inputs</key>
+<value>1</value>
+<type>int</type>
+</param>
+
+  <sink>
+    <name>in0</name>
+    <type>float</type>
+    <nports>1+$num_inputs</nports>
+  </sink>
+<!--
+  <sink>
+  <name>in1</name>
+  <type>float</type>
+  <nports>4</nports>
+  </sink> -->
+
+  
+  <source>
+    <name>out</name>
+    <type>float</type>
+  </source>
+
+<doc>
+
+This will take the coefficient values for the numerator.
+
+in00 = value of the coefficient of  s^0
+
+in01 = value of the coefficient of  s^1
+
+in02 = value of the coefficient of s^2
+
+and so on..
+
+</doc>
+
+</block>
diff --git a/gr-input/grc/Transfer_function_Response.xml b/gr-input/grc/Transfer_function_Response.xml
new file mode 100644
index 000000000..cb08a4c2a
--- /dev/null
+++ b/gr-input/grc/Transfer_function_Response.xml
@@ -0,0 +1,80 @@
+<?xml version="1.0"?>
+<block>
+  <name>Response</name>
+  <key>Transfer_function_Response</key>
+  <category>Transfer_function</category>
+  <import>import gnuradio.input.Response</import>
+  <make>gnuradio.input.Response.Response($order,$itype,$tstart,$tstop,$tstep)</make>
+
+<param>
+   <name>Order of transfer function</name>
+   <key>order</key>
+   <value>1</value>
+   <type>real</type>
+
+</param>
+
+
+  <param>
+    <name>Input Types</name>
+    <key>itype</key>
+    <type>enum</type>
+    <option><name>Impulse</name><key>11</key></option>
+    <option><name>Step</name><key>12</key></option>
+    <option><name>Ramp</name><key>13</key></option>
+  </param>
+
+ <param>
+<name>tstart</name>
+<key>tstart</key>
+<value>0</value>
+<type>real</type>
+</param>
+
+<param>
+<name>tstop</name>
+<key>tstop</key>
+<value>0</value>
+<type>real</type>
+</param>
+
+<param>
+<name>tstep</name>
+<key>tstep</key>
+<value>0</value>
+<type>real</type>
+</param>
+
+
+  <sink>
+    <name>in</name>
+    <type>float</type>
+    <nports>2</nports>
+  </sink>
+<!--
+  <sink>
+  <name>in1</name>
+  <type>float</type>
+  <nports>4</nports>
+  </sink> -->
+
+  
+  <source>
+    <name>out</name>
+    <type>float</type>
+  </source>
+
+<doc>
+
+This block can perfrom three types of system responses. 
+
+Step, Ramp and Impulse.
+
+in0 = Numerator Equation
+
+in1 = Denominator Equation
+
+</doc>
+
+
+</block>