TI BA-35 Solar Quick Reference Manual
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TI BA-35 Solar Quick Reference Manual

Ti ba-35 solar: quick reference
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BA-35 Solar Quick Reference Guide

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© 1996 by Texas Instruments Incorporated
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  • Page 1: Table Of Contents

    BA-35 Solar Quick Reference Guide Table of Contents General Information The Display Arithmetic Operations Correcting Errors Display Formats Memory Operations Math Operations Percentage Calculations Percentage Change Calculations Margin and Markup Calculations Compound Interest Calculations Annuity Calculations Converting to EFF or APR...

  • Page 2: General Information

    No indicator is displayed for profit margin mode. 2—Changes the calculator to the next mode in sequence. To set the calculator to a particular mode, press 2 repeatedly until the appropriate indicator is displayed. Changing to a new mode clears the contents of the mode registers.
  • Page 3 If you accidentally press 0, press it again to cancel its effect. Clearing the Calculator u (All Clear/On)—Clears the calculator completely, including the display, all pending operations, and the memory and mode registers. Pressing u also sets the...

  • Page 4: The Display

    The Display The display shows a maximum of 10 digits, although the calculator internally retains a maximum of 13 digits. Display Indicators Indicator STAT Begin Meaning The calculator will access the second function of the next key pressed (appears when you press 0).
  • Page 5 Indicator InDep Gprn Gint Meaning The displayed result is for the independent variables (x values). (Displayed only in the statistics mode.) The displayed result is for the dependent variables (y values). (Displayed only in the statistics mode.) The value in the display is the summed principal over a range of payments.

  • Page 6: Arithmetic Operations

    Arithmetic Operations Entering Numbers 6 - ? (Digits)—Enter digits into the display. You can enter a maximum of 10 digits and a decimal point. A (Decimal Point)—Enters a decimal point. @ (Change Sign)—Changes the sign of the number in the display. To enter a negative number, first enter the number as a positive value and then press @.

  • Page 7: Correcting Errors

    Correcting Errors Correcting Entry Errors - (Clear Entry/Clear)—To clear a numerical entry, press - once; then enter the correct number. To clear all pending operations and begin the calculation again, press - twice. w (x Exchange y)—Exchanges the values of x and y. If you enter x and y in the incorrect order, press w to reverse them.

  • Page 8: Display Formats

    Display Formats Floating-Decimal Format The calculator normally displays numbers in “standard” floating-decimal format, in which numbers are displayed in the range -9,999,999,999 to -0.000000001, 0, or 0.000000001 to 9,999,999,999. If the result of a calculation is too large or too small to be displayed in the normal format, it is displayed in scientific notation.

  • Page 9: Memory Operations

    Memory Operations The memory can store any numeric value within the range of the calculator. You can use the calculator’s memory to store, sum, and recall a numeric value. You can use the memory in any mode. r (Store)—Stores the displayed numeric value in the memory, replacing any value previously stored there.

  • Page 10: Math Operations

    The result is always positive. 0 H (Universal Power)—Raises any positive number to any power within the range of the calculator or calculates any root of any positive number within the range of the calculator. To calculate a power: 1.
  • Page 11 To calculate a root: 1. Enter the number (y) whose root you want to find. 2. Press 0 H. 3. Enter the root (x). 4. Press 0 \. 5. Press l or any key that completes the operation. 0 G (Natural Logarithm)—Calculates the natural logarithm (base e = 2.718281828459) of the displayed number.

  • Page 12: Percentage Calculations

    Percentage Calculations (Percent)—Calculate percentages, add-ons, discounts, and percentage ratios. Operation Percentage Add-On Discount Percentage Ratio Sequence n n E l p n E l o n E l m n E l Function Calculates n% of the principal amount. Calculates n% of the principal amount and adds the result...

  • Page 13: Percentage Change Calculations

    Percentage Change Calculations 0 4 (Percent Change)—Calculates the percentage change between two values. To calculate the percentage change: 1. Enter the new value. 2. Press 0 4. 3. Enter the old value. 4. Press l. The percentage change is calculated by the formula: New value - Old value x 100...

  • Page 14: Margin And Markup Calculations

    Margin and Markup Calculations To calculate cost, selling price, gross profit margin, or markup, use 2 to set the calculator to the profit-margin mode (no display indicator). R (Cost)—Enters the cost. S (Selling Price)—Enters the selling price. U (Margin)—Enters the gross profit margin,...
  • Page 15 Performing Gross Profit Margin Calculations To calculate cost, selling price, or gross profit margin: 1. Press 0 b to clear the registers and use 2 to enter the profit margin mode (no display indicator). 2. Enter the two known values (CST, SEL, or MAR).

  • Page 16: Compound Interest Calculations

    Compound Interest Calculations To calculate compound interest, use 2 to set the calculator to the to the financial mode (FIN appears in the display). In compound interest calculations in which no payment is involved, the payment (PMT) is assumed to be zero. When the payment has a...
  • Page 17 Recalling Values To recall a value that you have entered or computed, press s and the appropriate key for the value you want to recall. For example, to recall the present value, press s K. Performing Compound Interest Calculations To perform a compound interest calculation, you must know any three of the four values (N, %i, PV, or FV).

  • Page 18: Annuity Calculations

    The beginning-of-period function is in effect until you cancel it (by pressing 0 a again) or leave the financial mode. § When Begin is in the display, the calculator solves using beginning-of-period payments. § When Begin is not in the display, the calculator solves using end-of-period payments.
  • Page 19 Annuity Keys In annuity calculations, the following keys are used to enter or calculate the values listed below. C—Total number of payment periods. I—Percent interest per payment period. K—Present value of a series of payments plus the present value of FV. With a savings account, PV represents an initial deposit (not including the first payment).
  • Page 20 Annuity Calculations Recalling Values To recall a value that you have entered or computed, press s and the appropriate key for the value you want to recall. For example, to recall the present value, press s K. Positive or Negative Payments In annuity problems, the present value and future value are usually positive numbers.
  • Page 21 1. Press 0 b to clear the registers, and use 2 to enter the financial mode (FIN appears in the display). 2. Ensure that the calculator is set correctly for the type of annuity calculation desired. § For ordinary annuities, Begin should not be displayed.
  • Page 22 Annuity Calculations Special Functions for Monthly Compounding or Payment Periods 0 h (Monthly Interest)—Divides the number in the display by 12 and displays the result. This number can then be stored as the monthly interest rate (%i). To use the 0 h key sequence: 1.

  • Page 23: Converting To Eff Or Apr

    Converting to EFF or APR To convert to EFF or APR, use 2 to set the calculator to the financial mode (FIN appears in the display.) Annual Percentage Rate (APR)—The interest rate per compounding period multiplied by the number of compounding periods per year.

  • Page 24: Balance, Interest, And Principal

    Balance, Interest, and Principal To calculate balance, interest and principal, use 2 to set the calculator to the financial mode (FIN appears in the display.) W (Balance)—Calculates the remaining loan balance (principal) after a selected payment. To find the balance: 1.
  • Page 25 To find the interest and principal of a single payment 1. If necessary, press 0 a to change the calculator to solve for end-of-period payments or beginning-of-period payments. 2. Enter the appropriate values with the C, I, K, L, and M keys.
  • Page 26 To find the summed interest and principal over a range of payments: 1. If necessary, press 0 a to change the calculator to solve for end-of-period payments or beginning-of-period payments. 2. Enter the appropriate values with the C, I, K, L, and M keys.

  • Page 27: Statistics

    Statistics To enter a statistics problem, use 2 to set the calculator to the statistics mode (STAT appears in the display). 0 b (Clear Mode Registers)—Clears any previously entered data points. g (Statistics Data Entry)—Enters the displayed number as a data value in the statistical registers.
  • Page 28 Statistics (Continued) Mean 0 z (Data Mean)—Calculates the mean (average) of all the data values currently stored in the statistical registers. If you have entered data points with x and y values, press 0 z to display the mean of the y values;...
  • Page 29 Linear Regression 0 { (Intercept/Slope)—Enables you to display the y-intercept and slope of the representative line. To display the y-intercept (b), press 0 {; to display the slope (a), press w after you display the y-intercept. 0 d (Correlation)—Calculates the correlation between the x and y values in a set of data points.

  • Page 30: Common Keystroke Sequences

    (ordinary annuity). Values You Supply: § mortgage amount § annual interest rate § number of years in mortgage Procedure Clear calculator and mode registers; select two decimal places. Press 2 until FIN is displayed. Press 0 a until Begin is not displayed.*...
  • Page 31 § mortgage amount § annual interest rate § number of years in mortgage § amount of payment § payment number Procedure Clear calculator and mode registers; select two decimal places. Press 2 until FIN is displayed. Press 0 a until Begin is not displayed.*...
  • Page 32 § percent limit (of gross monthly income) § percent taxes and Insurance (of total monthly payment) § percent down (of selling price) Procedure Clear calculator and mode registers; select two decimal places. Press 2 until FIN is displayed. Key Sequence 0 c 2 (Cont.)
  • Page 33 Procedure Press 0 a until Begin is not displayed.* Enter monthly interest rate. Calculate and enter number of monthly payments. Calculate and store maximum monthly payment. Calculate and enter maximum allowable loan payment (without taxes or insurance). Compute maximum allowable loan amount. Calculate house price (including down payment).
  • Page 34 Values You Supply: § original price (dollar amount) § profit (dollar amount) § points (percentage points) § commission (percentage points) Procedure Clear calculator and mode registers; select two decimal places. Press 2 until no mode indicator is displayed. Add original price and...

  • Page 35: Error Conditions

    Error Conditions When an error condition occurs, the word “Error” appears in the display. The calculator will not accept a keyboard entry until you press - or u to clear the error condition. (Press - twice to clear the condition and all pending operations;...
  • Page 36 § Perform a linear regression calculation with less than two data points. § Perform a linear regression calculation on a vertical line. § Enter a series of data values such that the sum of their squares exceeds the upper or lower limit of the calculator. (Continued)

  • Page 37: In Case Of Difficulty

    In Case of Difficulty If you have difficulty operating the calculator, you may be able to correct the problem with the solutions suggested in the table below. Observation Display is blank; digits do not appear. A function does not seem to work.

  • Page 38: Ti Product Service And Warranty Information

    TI Product Service and Warranty Information TI Product and Services Information For more information about TI products and services, contact TI by e-mail or visit the TI calculator home page on the world-wide web. e-mail address: internet address: Service and Warranty Information...

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