(Bug?) HP48 Equation Library

[Brad Barton]

Ah, I see your point regarding c being given a value. I was only looking at the variable and equation list in the 48 itself.

The confusion may be rooted in the difference between external (applied) moments and internal bending (reaction) moments. In the beam analysis print outs that you provided, you were able to produce a change in the external moment distribution by changing the value for c.

Note however that the graph of the shear values inside the beam did not change. Since shear is dM/dx, it is apparent from the shear plot that the internal or bending moments inside the beam did not change even though the the location of the applied external moment did.

The cantilever beam equations provided in the equation library calculate deflection, slope, (internal) moments, and shear; none of which appear to be influenced by the the position of an applied (external) moment.