When used in mathematics, a "phase shift" refers to the "horizontal shift" of a trigonometric graph. While mathematics textbooks may use different formulas to represent sinusoidal graphs, "phase shift" will still refer to the horizontal translation of the graph. Consider the mathematical use of t...
However, a vertical shift function was not needed. In Figure 4.17, a three-dimensional graph is shown indicating the variation of Fx and Fy with both α and κ. The initial ‘S’ shape of the Fy vs κ curves (at small α) due to the vertical shift function is clearly visible. Sign ...