Difference between revisions of "Curve Command"
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; Curve[Expression e1, Expression e2, Parameter t, Number a, Number b]: Yields the Cartesian parametric curve for the given ''x''-expression ''e1'' and ''y''-expression ''e2'' (using parameter ''t'') within the given interval [''a'', ''b'']. | ; Curve[Expression e1, Expression e2, Parameter t, Number a, Number b]: Yields the Cartesian parametric curve for the given ''x''-expression ''e1'' and ''y''-expression ''e2'' (using parameter ''t'') within the given interval [''a'', ''b'']. | ||
: Example: Input of <tt>c = Curve[2 cos(t), 2 sin(t), t, 0, 2 pi]</tt> creates a circle with radius 2 around the origin of the coordinate system. | : Example: Input of <tt>c = Curve[2 cos(t), 2 sin(t), t, 0, 2 pi]</tt> creates a circle with radius 2 around the origin of the coordinate system. | ||
Revision as of 23:59, 28 October 2009
- Curve[Expression e1, Expression e2, Parameter t, Number a, Number b]
- Yields the Cartesian parametric curve for the given x-expression e1 and y-expression e2 (using parameter t) within the given interval [a, b].
- Example: Input of c = Curve[2 cos(t), 2 sin(t), t, 0, 2 pi] creates a circle with radius 2 around the origin of the coordinate system.
Note:
- Parametric curves can be used with pre-defined functions and arithmetic operations. For example, input c(3) returns the point at parameter position 3 on curve c.
- Note: Using the mouse you can also place a point on a curve using tool New Point or command Point. Since the endpoints a and b are dynamic you can use slider variables as well (see tool Slider).
