Using equations in Autodesk Inventor
If you want to use equations in the Autodesk Inventor then first write it down in Microsoft Office using insert equation tool. Then change the equation option to linear. Now make changes according to following link (valid formula syntax and abbreviations can be used in Autodesk Inventor). Now you can use your equations without any error. Take a look on the following page too to get an overall knowledge how equations are written in Autoedsk Inventor. Formulas for “Everyday” Use.
Deck (Architectural Model) Autodesk Inventor 2012

Here are some more images of Deck after some modification using visual styles. After visiting the view tab> appearance panel you will find lightning styles. Image-based lights styles are very useful for the visualization of you model. Image-based lights, also called IBL, derive their lighting parameters from high dynamic range (HDR) images. The image provides a source location and luminance or radiance values that correspond more with real world lighting, providing a more realistic viewing experience. Above picture was before applying the Visual Stiles and the following images are after applying the visual styles:– There are many setting that can be done after applying predefined styles.
Hyperbola from 2D Equation Curve (Autodesk Inventor 2013)

Serial No. 127 Hyperbola from 2D Equation Curve (Autodesk Inventor 2013) Click the following link to get the model file: – httphttp://bit.ly/2mGa7iK
Parabola from 2D Equation Curve (Autodesk Inventor 2013)

Serial No. 126 Parabola from 2D Equation Curve (Autodesk Inventor 2013) Click the following link to get the model file: – http://bit.ly/2npGd2p
Ellipse from 2D Equation Curve (Autodesk Inventor 2013)

Serial No. 128 Ellipse from 2D Equation Curve (Autodesk Inventor 2013) Click the following link to get the model file: – http://bit.ly/2ILdUmS
Paraboloid (Autodesk Inventor 2012)

Serial No. 69 Paraboloid (Autodesk Inventor 2012) Click the following link to get the model file: – http://bit.ly/2noGzpS
Hyperboloid (Autodesk Inventor 2012)

Serial No. 51 Hyperboloid (Autodesk Inventor 2012) Click the following link to get the model file: – http://bit.ly/2mkA9Ij
Ellipsoid (Autodesk Inventor 2012)

Serial No. 32 Ellipsoid (Autodesk Inventor 2012) Click the following link to get the model file: –http://bit.ly/2nIXzr6