Ivan Gavrilov/CalcKit: All-in-One Calculator

Alldatasheet.com 
Resistivity Table 
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units 
units² 
units³ 
sides 
 
Area 
Perimeter 
Radius of inscribed circle 
Radius of circumscribed circle 
Number of sides 
Numerical eccentricity 
Radius of inscribed sphere 
Radius of circumscribed sphere 
Volume 
Total Area 
Lateral Area 
Base Area 
Top Area 
Bottom Area 
Area of Spherical Cap 
Radius 
Distance

Result 
Input 
Value 
Values 
Method 
Type 
Size 
 
units 
 
Arithmetic 
Geometric 
Harmonic 
 
How many different numbers are possible? 
How many numbers are used in a set? 
Is the order important? 
Can you repeat a number? 
Combinations 
Permutations 
 
Decimal 
Fraction 
 
GCF 
LCM 
Greatest Common Factor 
Least Common Multiple 
 
Prime Factors 
Next Prime 
Is Prime 
 
Equations 
System of equations 
Infinite solutions 
 
Dimensions 
Select operation 
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Initial Value 
Increase / Decrease 
Final Value

Determinant of Matrix A = 0, the matrix is not invertible 
 
Determinant of Matrix B = 0, the matrix is not invertible 
 
The sizes of matrices should be identical! 
 
The number of columns in Matrix A should equal the number of rows in Matrix B!

Yes 
No 
 
Directly Proportional 
Inversely Proportional 
 
Linear Equation 
Quadratic Equation 
Cubic Equation 
 
2x2 Array 
3x3 Array 
 
A ⇄ B 
A × B 
A + B 
A - B 
Determinant 
Inverse 
Transpose 
 
Increase 
Decrease

Result 
Input 
Values 
 
hours 
turns 
 
Color to Value 
Value to Color 
Resistor Value 
Inductor Value 
Bands 
Nearest Standard Value 
Number of Bands 
Tolerance 
Temperature Coeff. 
 
Number of LEDs in series 
Red 
Orange 
Green 
Blue 
Infrared 
Vcc is too small 
 
Components 
Series 
Parallel 
Total 
Resistor 
Capacitor 
Inductor 
 
Active Power 
Reactive Power 
Apparent Power 
Phase 
Power Factor 
 
Select Application 
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Select Filter 
 
Capacitive Reactance 
Inductive Reactance 
Resonance 
 
Material 
Resistivity 
Conductivity 
Wire Length 
Wire Size 
Wire Resistance 
Wire Conductance 
 
Battery Capacity 
Device Consumption 
Estimated Hours 
 
Resolution 
Reference Voltage 
Low Voltage 
High Voltage 
ADC Values 
Digital 
Analog 
Input Voltage Range 
Quantization Levels 
Voltage per Level 
 
Harmonic 
Frequency 
Period 
Speed 
Wavelength

Due to the voltage loses in the LM317 regulator chip, the input voltage should be at least 2V more than the required output voltage. 
 
T -> Output Pulse. R1 should be in range of 1KΩ to 1MΩ. 
 
Duty = High Period ÷ Total Period × 100. R1 & R2 should be between 1KΩ and 10MΩ. It is not possible to have Duty < 50% with this circuit.