Tangent 2.2 manual Using the Expression Evaluator

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Click this button to enter the result value into the Calculator Readout for further calculations.

Cancel Button

Close this screen.

Make Topmost Window (Up Arrow button)

Click this button if you want this screen to "float on top" of all other windows.

There are 7 Intra-System Conversion modes. They are as follows:

Metric Units

exa, peta, tera, giga, mega, kilo, hecto, deka, deci, centi, milli, micro, nano, pico, femto, atto.

English Weights

Grain, Dram, Ounce, Pound, Stone, Hundred weight, Long hundred weight, Long ton, Short ton.

English Square (include English acres to Metric hectares conversion)

Sq. Inch, Sq. Foot, Sq. Yard, Sq. Rod, Acre, Sq. Mile, Hectare (metric).

English Cubic

Cu. Inch, Cu. Foot, Cord foot, Cu. Yard, Cord, US gallon, British gallon, US bushel, British bushel.

English Length

Mil, Inch, Link, Foot, Yard, Fathom, Rod, Chain, Furlong, Cable's length, Mile, Nautical mile, League

English Capacity

Fluid ounce, Gill, Pint, Quart, Gallon, Peck, Bushel

Computer Units

bit, nibble, byte, kilobit, kilobyte, megabit, megabyte, gigabyte, terabyte, pe- tabyte, exabyte, zettabyte, yottabyte.

Using the Expression Evaluator

The Scientific Expression Evaluator is used to obtain results from a complex or sim- ple mathematical expression. It follows the operator hierarchy and algebraic gram- mar rules. For example, in a standard calculator 2+2*3 would equal 12, but in an algebraic calculator that same expression would equal 8. This is because in a stan- dard calculator the expression is evaluated from left to right, but in an algebraic cal- culator, calculations follow the rules of algebra (operator hierarchy takes priority). In this particular case the first action would be multiplication and then addition. You must also remember that bracketed expressions and powers are calculated before anything else.

Operator Hierarchy:

1.Brackets [()]

2.Power [^]

3.Multiplication [*], Division [/], Remainder [\]

4.Addition [+] and Subtraction [-]

You can use all numbers [0 to 9] on the keyboard, as well as Other Valid Keys to enter your expressions. You can also use up to three Variables (X,Y & Z).

Enter your expression into the main Expression Readout box. (This is the box lo- cated to the left of the OK button.) You can either type your expression or paste it

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Contents Cdml Advanced Calculator Version Page Table of Contents About Cdml Advanced Calculator Easy Access Show in TrayPage Using the Calculator Using the Tape Standard Calculator OperatorsUsing Memory Functions Clearing Entries in Cdml CalculatorOther Valid Keys in Cdml Advanced Calculator Toolbar Setup Set PropertiesFinancial Mode Start MinimizedStart On Top Calc. On TopRPN Mode Auto-Decimal ModePercentage for Number Decimal PlacesPage Cdml Advanced Calculator Menus File Menu Edit MenuTape Menu Operators Menu Modes Menu Area/Volume Metric to English Area/Volume English to MetricTemperature Repeat SubtractionScientific Menu Financial Menu Properties Menu Help Menu Email Technical Support Email SalesJoin Cdml Mailing List Email CdmlAdvanced Calculator Functions Modified Internal Rate of Return Financial FunctionsInterest Calculator Using Conversion Functions Metric to English Area and Volume English to Metric Currency Conversion Numeric Base Conversions Intra-System Unit ConversionsUsing the Expression Evaluator Construction Foot/Inch Calculator Formula Drop-Down ListInsert Button Formulas ButtonOK and Cancel buttons Expression ReadoutValue of X, Value of Y, Value of Z Clear VariablesFormula Editor Exit Button Edit ButtonDelete Button Time/Date Calculations Time Entry CalendarDate Notes/ RPN Stack/ Scratch Pad Find Next Button Clock ButtonSave Daily Notes Button Log FileReminder Alarms Sending Keystrokes with Alarms Project Timer CodesWhy Register Registration ScreenUser Name Serial NumberSupport by Email Technical SupportSupport by Phone Glossary AnnuityWe provide a variety of services Copyright/Licensing User License