Example: To transform the rectangular form [1, 1, 1] into its equivalent spherical form (in the Radian mode)

utoCyl [Action][Vector][toCyl]

Function: Returns an equivalent cylindrical form [r∠ z].

Syntax: toCyl (Mat [,natural number] [ ) ]

•This command can be used with a 1 × 3 or 3 × 1 matrix only.

•This command returns “r” when “natural number” is 1, “ ” when “natural number” is 2, and “z” when “natural number” is 3.

•This command returns a cylindrical form when you omit “natural number”.

Example: To transform the rectangular form [1, 1, 1] into an equivalent cylindrical form (in the Radian mode)

Using the Equation/Inequality Submenu

The [Equation/Inequality] submenu contains commands that are related to equations and inequalities.

usolve [Action][Equation/Inequality][solve]

Function: Returns the solution of an equation or inequality.

Syntax: solve(Exp/Eq/Ineq [,variable] [ ) ]

• “x” is the default when you omit “[,variable]”.

solve(Exp/Eq/Ineq,variable[, value, lower limit, upper limit] [ ) ]

•“value” is an initially estimated value.

•This command is valid only for equations and  expressions when “value” and the items following it are included. In that case, this command returns an approximate value.

•A true value is returned when you omit “value” and the items following it. When, however, a true

value cannot be obtained, an approximate value is returned for equations only based on the assumption that value = 0, lower limit = – ∞, and upper limit = ∞.

solve({Exp-1/Eq-1, ..., Exp-N/Eq-N}, {variable-1, ..., variable-N} [ ) ]

•When “Exp” is the first argument, the equation Exp = 0 is presumed. Example: To solve ax + b = 0 for x

Example: To solve simultaneous linear equations 3x + 4y = 5, 2x – 3y = –8

You also could input the simultaneous equations shown in this example using the soft keyboard # key. The following shows the required input syntax.

Exp-1/Eq-1

Exp-N/Eq-N variable-1, ..., variable-N

•The following shows the required key operation to input this example using the # key.

#dX+eY=fccX-dY=-ieX,Yw

•To input simultaneous equations with three or more unknowns, tap the # key when the cursor is in the Exp-N/Eq-N input field. Each tap of # will add one more line for input of an equation.

Chapter 2: Main Application

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