Recent content by forrest747
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High School How do we know if the coordintes of a point lie within and outside a triangle?
You know the vertices so you can easily get the linear equations [call them y1=, y2= and y3=] for the three lines that contain each side of the triangle. [Method caveat: begin with a point known to be OUTSIDE the triangle. Find the line equation y4= from that outside point to the point you...- forrest747
- Post #6
- Forum: General Math
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Struggling with Calculus Problems in Systems Dynamics?
Systems Dynamics Cyrus: In Systems Dynamics 101, any system can be described using equations whereby an EFFORT variable induces a FLOW variable. These equations are usually only to 2nd order (2nd derivative.) Some examples: Electrical voltage induces a current; current is affected by...- forrest747
- Post #5
- Forum: Calculus and Beyond Homework Help