Texas Instruments voyage 200 User Manual - Page 827
ImpDif, Indirection, Input, which one variable is defined implicitly in terms
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If Boolean expression1 Then block1 ElseIf Boolean expression2 Then block2 © ElseIf Boolean expressionN Then blockN EndIf Allows for program branching. If Boolean expression1 evaluates to true, executes block1. If Boolean expression1 evaluates to false, evaluates Boolean expression2, etc. Program segment: © :If choice=1 Then : Goto option1 : ElseIf choice=2 Then : Goto option2 : ElseIf choice=3 Then : Goto option3 : ElseIf choice=4 Then : Disp "Exiting Program" : Return :EndIf © imag( ) MATH/Complex menu imag(expression1) ⇒ expression imag(expression1) returns the imaginary part of the argument. Note: All undefined variables are treated as real variables. See also real(). imag(list1) ⇒ list Returns a list of the imaginary parts of the elements. imag(matrix1) ⇒ matrix Returns a matrix of the imaginary parts of the elements. imag(1+2i) ¸ imag(z) ¸ imag(x+iy) ¸ imag({ë 3,4ë i,i}) ¸ imag([a,b;ic,id]) ¸ 2 0 y {0 ë 1 1} [0c 0d] ImpDif() MATH/Calculus Menu, CATALOG ImpDif(equation, independentVar, dependentVar[,order ]) ⇒ expression where the order defaults to 1. impDif(x^2+y^2=100,x,y)¸ -x/y Computes the implicit derivative for equations in which one variable is defined implicitly in terms of another. Indirection See #(), page 909. Input CATALOG Input Pauses the program, displays the current Graph screen, and lets you update variables xc and yc (also rc and qc for polar coordinate mode) by positioning the graph cursor. When you press ¸, the program resumes. Program segment: © :¦ Get 10 points from the Graph Screen :For i,1,10 : Input : xc! XLIST[i] : yc! YLIST[i] :EndFor © Appendix A: Functions and Instructions 829
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