Pratt / Howe truss

Description
In mode 0, use the slider Howe/Pratt to flip the diagonals. Under the tab forces, modify the magnitude of the loads F1 to F7. In mode 1, use the slider to illustrate how the forces in the truss can be determined graphically: 1-4) constructing the loadline and determining the reaction forces using a trial funicular construction; 6-19) constructing the force diagram by determining the local equilibrium of each node, starting with a node with two unknowns at most.