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Calculator App Home

Scientific Use variables in expression using Calculator App How to plot and integrate using Calculator App (Includes contour integral on complex path) How to find derivative at a point using Calculator App Fourier Transform using Calculator App How to find roots of polynomial using Calculator App Solve Linear Equations using Calculator App How to save and reuse calculations as macros in memory using Calculator App Matrix Matrix calculations using Calculator App Statistics Descriptive statistics, histograms and ogives using Calculator App Correlation and regression using Calculator App Statistics t test, z test and F test - using Calculator App Chi Square test using Calculator App Anova, analysis of variance using Calulator App Statistical process control (SPC) and Statistical quality control (SQC) using Calculator App Price Index number calculation using Calculator App Vector Algebra Vector Algebra using Calculator App Personal Finance Loan, EMI and Deposit Interest Calculation using C...
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How to plot and integrate using Calculator App

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 Plot or Integrate using simulated data in specified range To plot or integrate, input expression with respect to an independent variable and then tap 📈 or ≈∫ For example input expression X * X  + X where X is an independent variable. Tap on  ≈∫ , select independent variable as X and start-end range from -5 to 5 Result  -5 5 ∫  ƒ dX  = 83.333333333 (Approx) Note1: The range for integral (end - start) has a limit that is shown by the app. Note2: The result of plot or integral may be inaccurate for expressions with very high frequency. To avoid such errors the displayed sampling rate should be kept many times the frequency of expression. The user can increase the sampling rate by decreasing the start-end range. Plot or integrate using file spreadsheet data Use  the "Var=> ▤ Values=>Read from Sheet" option to open the  variable  editor . Then read from a spreadsheet file using the "Read Create Spreadsheet..." option. After the f...
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How to save and reuse calculations as macros in memory using Calculator App

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 Save and reuse calculations as macros in memory You may want to save the calculation result in CAL memory list and reuse it in another calculation. The app provides an easy way to save a calculation with a given name and then reuse it. For example, if you need to total payments made for each day in memory and save the result day wise for last 7 days - - Input expression for Day1 total. Ex - 30+60+80+65 - Name the calculation as Day1 in the calculation name box and tap Add To List ⇓ . The calculation gets saved as a macro in the CAL list box below expression. In the same way, save named calculations till Day7 in memory. Now, if you have a requirement to grand total - Day1 and Day7 totals plus 30 - Input expression 30+ - Tap on Use ⇑  next to Day1 in the memory box. - Input + and then tap on Use ⇑  next to Day7 in the memory box. You can similarly save complex mathematical expressions as macros involving variables and then reuse them as required. Please note that these sav...
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