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Tangent Subtraction on Number Line

Tangent Subtraction on Number Line
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2018-12-01 11:21
FunctionTrigonometryCoordinate Geometry
This example demonstrates the subtraction of tangent functions on a number line. Key mathematical concepts include the tangent function and subtraction. Using GeoGebra commands such as Textfield, Segment, and Point, the process of subtraction is dynamically illustrated. Suitable for students at the junior high school level and above to learn about the properties and operations of the tangent function.

GeoGebra Commands & Parameters

  1. Textfield(Ltext) → InputBox1
  2. Textfield(Rtext) → InputBox2
  3. Segment(A, D) → b
  4. Segment(D, E) → c
  5. Segment(E, B) → d
  6. Point(a) → G
  7. Min(upper, lower) → L
  8. Max(upper, lower) → R
  9. If(x(G) < L - (0.1 * spread), x(A) - spread / 15, If[x(G) > R + (0.1 * spread), x(A) - (0.6 * spread), L - spread / 3]) → left
  10. If(x(G) < L - (0.1 * spread), x(B) + (0.6 * spread), If[x(G) > R + (0.1 * spread), x(B) + spread / 15, R + spread / 3]) → right
  11. Polygon((-1000000, 6), (1000000, 6), (1000000, -6), (-1000000, -6)) → poly1, f, g, h, i
  12. Segment((x(C), 2.5), (x(A), 2.5)) → m
  13. Segment((x(F), 2.5), (x(B), 2.5)) → p
  14. Midpoint(m) → H
  15. Midpoint(p) → I
  16. Segment(C, H) → l
  17. Segment(H, A) → n
  18. Segment(F, I) → q
  19. Segment(I, B) → r
  20. If(x(A) > L, "+", "-") → text2