The text explains that the slope of the bending moment diagram at any point is equal to the value of the shear force at that point. Similarly, the slope of the shear diagram is equal to the negative of the load intensity.
The keyword refers to one of the most iconic textbooks in engineering: Resistencia de Materiales (Strength of Materials) by Stephen Timoshenko and James M. Gere, specifically the 5th Spanish edition . timoshenko resistencia de materiales 5 edicion pdf 197
Specifically addressing circular and non-circular elements. The text explains that the slope of the