PowerCalculator Help

Full instructions here: HELP

Computing mode

Compound expressions are supported, such as:

• 2j(-3sin(3.14/2))*sqrt(2)*(2+3j)
• x^y usage: button generates "pow(" expression
  pow((-3j-2),5) for expression equal to (-3j-2)^5
  pow(2,-1/5) => 2^(-1/5) => (1/2)^(-5)
• sqrt( usage:
  sqrt(2*2*2*2)
• use 2nd to toggle arcus in trigonometry, factorial (!) and combinations (nCr)
• use RAD/DEG to toggle input for trigonometry functions
• nCr usage: button generates "comp(" expression:
  comp(4,2) is equal to "4 above 2"
• you can use factorials (!) only for natural numbers
• use e to gain "pow(e," expression; e=2.781...
• when you are doing calculations with complex numbers, you must first enter number, and then j
• with << and >> you can browse "history" - last five entered expressions
• use del to delete last character. Make sure to delete entire last input sequence.

Matrix

Input matrices as strings and then press "A" to input string into matrix A or "B" to input into matrix B

• input "1+j,2+2j,3+0.3j;4-j,5-0.5j,6;7,8,9" and press "A" to gain matrix:

  A=
  1+j	2+2j	3+0.3j
  4-j	5-0.5j	6
  7	8	9
  

• use rcl A to extract matrix A into input stream without changing output screen
• use rcl ANS to extract result of last operation into input stream
• use CLR to clear input and output without deleting matrixes
• use "A" or "B" with empty input stream to recall matrix A or B to output; if input stream is not empty it will overwrite the matrix.
• ALLWAYS input complex numbers in this form:
  1+2j or -2j, don't do 2j+3 or 3+j2.
• DO NOT enter last ";" in input, such as: 1,2;3,4; - rather do 1,2;3,4

Base

Select origin base, input a sequence and press "=". Then pick a destination base

Arithmetic operations are allowed with one operator at the time only

Graph

When in Comp mode use f(x) or g(x) to choose which function to define (use 2nd to switch between f(x) and g(x). Enter desired function into input line,click f(x) or g(x) to define function, go to Graph tab to obtain Graph screen. Click re(Start) to draw, or use buttons to move through the image. There are possible plotting errors if function has a pole.