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Basic Calculator

Our Basic Calculator is easy to use and it works on any size display.  Expand or shrink its size.  Great in the classroom, office, and at home.

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M
JavaScript Needed
MC
MS
M-
M+
MR
AC
CE
±
7
8
9
÷
%
4
5
6
×
1/x
1
2
3
0
.
+
=

Features

  • 12-Digit display, 16-Digit math accuracy
  • Simple left to right math calculations
  • Fixed or floating point operation
  • 4 Basic operands
    Addition, Subtraction, Multiplication, Division
  • 4 Additional functions
    Square Root, Reciprocal, Inverse, Percent
  • 5 Memory functions
    Store, Add, Subtract, Recall, Clear
  • Clear all, clear entry, and backspace
  • Digit grouping 000's along with
    international , and . use setting
  • Keyboard input with button feedback
  • Easy to repeat last operation
  • Displays math expression
  • Copy and paste values
  • Clear error messages
  • Savable Settings
  • Resizable

Math Constants

π
Archimedes' Constant Pi
3.1415926535Alt-P
e
Natural Logarithmic Base
2.7182818284Alt-E
ϕ
Golden Ratio
1.6180339887Alt-G
γ
Euler's Constant
0.5772156649Alt-Y

Keyboard Shortcuts

ButtonKey
0 ... 90 ... 9Digits
ACEscAll Clear
CEDeleteClear Entry
Backspace
==orEnterEquals
..Decimal Point
++Add
-Subtract
×*orXMultiply
÷/Divide
M+AMemory add
MCCMemory clear
MSMMemory store
MRRMemory recall
M-SMemory subtract
±IInvert +/-
F1Square Root
%F2Percent
1/xF3Reciprocal 1/x
Alt-Pπ - Pi
Alt-Ee - Natural Log
Alt-Gϕ - Golden Ratio
Alt-Yγ - Euler's Constant

Examples

To Compute
 
Buttons / Keys
 
2 x 32×3=
(2 x 3) + 102×3+10=
2 x (3 + 10) 3+10×2=
√ 2
2
1/102410241/x
2 x √ 2
2×2=
-23 2±×==
√ 32 + 42
3×=MS4×=
M+MR
π x 10210×=×Alt-P=
256 + 10% 256+10%=
5% of 255%×25=
     53
√ 2 + 6
2+6=1/x
×5===

Settings

Display:
Digit Grouping:
Decimal Symbol:
Fix Math Errors:
Show Math:
Calculator Size:

Bookmark link below for the settings above . . .

 

About

Basic Calculator - Version:

We develop browser-based calculators with lightweight digital footprints so they load fast and are easy to use.  They're used in meetings, classes, tests, presentations, and at home.

Our calculators are superior in . . .

  • Accuracy (16 digit)
  • Robustness (cloud QC'ed)
  • Ease of use (intuitive, shortcuts, examples)
  • Fast (loading, calculating)
  • Passing calculator torture tests

Reach us at . . .

Ad-Free Version

Use this calculator without ads!

Here's how:

  • Click button below to send $5
  • You will receive an email with the ad-free calculator attached as an HTML file
  • Use that calculator on all your devices

Get yours now...
 

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