Casio FX-9860GII-L-IH User Guide - Page 191
To store a polar coordinate function, To store a parametric function, Example
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5-3-2 Drawing a Graph u To store a polar coordinate function (r=) *1 Example To store the following expression in memory area r2 : r = 5 sin3θ 3(TYPE)2(r=) (Specifies polar coordinate expression.) fsdv(Inputs expression.) w(Stores expression.) u To store a parametric function *2 Example To store the following functions in memory areas Xt3 and Yt3 : x = 3 sin T y = 3 cos T 3(TYPE)3(Parm) (Specifies parametric expression.) dsvw(Inputs and stores x expression.) dcvw(Inputs and stores y expression.) *1A function cannot be stored into a memory area that already contains a function of a different type from the one you are trying to store. Select a memory area that contains a function that is the same type as the one you are storing, or delete the function in the memory area to which you are trying to store. *2You will not be able to store the expression in an area that already contains a rectangular coordinate expression, polar coordinate expression, X = constant expression or inequality. Select another area to store your expression or delete the existing expression first. 20050401