integer. If order is less than zero, the
anti-derivative is returned. d() does not fully
simplify the expression and var before finding
the derivative.
▶
▶▶
▶DD
number▶DD
list▶DD
matrix▶DD
Return decimal equivalent of the angle
argument. The current Angle Mode sets the
argument as degrees or radians. The argument
may be radians.
▶
▶▶
▶Dec
number▶Dec
Convert number to a decimal number,
regardless of the current Base mode.
Define
Define functionName(arg1,arg2, ...)=expr
Create function functionName() with arguments
arg1, arg2. fName() evaluates expression with
the supplied arguments and returns the result.
Do not use arg1 or arg2 as arguments when
calling functionName(). This form of Define is
equivalent to expr→functionName(arg1,arg2).
Define functionName(arg1,arg2,...)=Func
block
EndFunc
Same as above except that block can include
multiple expressions and use Return to return
the result.
Define programName(arg1,arg2,...)=Prgm
block
EndPrgm
Same as above except that program
programName() is defined. Programs cannot
return results.
DelFold folder1 [,folder2, folder3, ...]
Delete folders. The Main folder cannot be
deleted. An error message is shown if any folder
contains variables.
DelVar var1 [var2, var3, ...]
Delete variables from memory.
deSolve(ode12,indVar,depVar)
Return general solution of 1st- or 2nd order
ordinary differential equation ode12 with
independent variable indVar and dependent
variable depVar. The prime symbol ' indicates
the 1st derivative, two prime symbols ' ' indicate
the second derivative.
(ode1 and inCond,indVar,depVar)
Return particular solution of 1st-order differential
equation ode1 with initial condition inCond.
inCond is in the form depVar(inIndVar) =
inDepVar; for example, y(0) = 1. inIndVar and
inDepVar can be variables with no stored
values.
(ode2 and inCond1 and inCond2,indVar,depVar)
Return particular solution of 2nd-order
differential equation ode2 with initial conditions
inCond1 and inCond2. inCond1 specifies the
value of the independent variable at a point, in
the form depVar(inIndVal) = inDepVal. inCond2
specifies the value of the first derivative at a
point in the form depVar'(inIndVal) = in1stDeriv.
(ode2 and BndCnd1 and BndCnd2,indVar,
depVar)
Return particular solution of 2nd-order
differential equation with boundary conditions
BncCnd1 and BndCnd2.
det(matrix [,tol])
Return determinant of square matrix. Any
element less than tol is considered zero. The
default tol is 5E-14 * max(dim(matrix)) *
rowNorm(matrix).
diag()
(list), (rowMatrix), (colMatrix)
Return matrix with main diagonal elements of
argument.
(matrix)
Return row matrix whose elements are the main
diagonal elements of square matrix.
Dialog
Dialog : block : EndDlog
Display a dialog box during program execution.
block consists of Text, Request, DropDown and
Title commands. Dialog box variables are
displayed as default values. If [ENTER] is
pressed, the variables are updated and the
system variable ok is set to 1. If [ESC] is
pressed, the variables are not updated and ok is
set to zero.
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