pwr-calculator

Features pwr-calculator

The features of pwr-calculator are aimed at minimizing the average time in which a group of ESO students perform 30 complex and nested operations.
When many operations are performed, it is easy to make mistakes, so debugging features play an important role in overall efficiency:1) Display on the same line of the COMPLETE operation with the delete key and the possibility of reviewing the last operation carried out.2) Enter the operations in the order in which they are read, that is, type “sin(PI/2)” instead of “PI/2=” and then “sen”.3) Use of a simple keyboard with few keys (20 keys) and activation of the scientific operations by means of a change key (UP arrow in the lower left corner).
Automatic return to the numeric keypad when selecting an operation.4) Automatically open parentheses in complex and higher hierarchy operations, which are: sine, cosine, tangent, logarithms and square root.5) Close pending parentheses automatically when pressing “=”.
“((2+1)/(2+1” populates to “((2+1)/(2+1))=1” and “Ln(e” populates to “Ln(e)=1” .6) When an error occurs while processing an operation or expression, an "Expression Error" message is displayed and the operation is kept on the screen to be able to correct the error and perform the calculation.7) The multiplication sign is assumed between functions and/or parentheses, as is usually used in mathematical expressions.8) Approaches “Infinity” from a value (10^15) to force expressions like “3/0” or “tan(PI/2)” to generate an error or a very high number.
Decimals are rounded to 6 places.
And dots are shown to separate the thousands, millions,...
and make it easier to read.9) Do not automatically delete the last result unless it is infinite in order to continue operating with it.
If you want to delete, press the “C” key.10) Automatic adjustment of the keys to the space available for the calculator, maximizing the size of the keys.