DecimalCalcul 2.4

Fournit une classe dédiée aux calculs sur des nombres décimaux

Decimal

This class is used to compute real result from decimal calcul. By example, if we wan't to calcule 0.1 + 0.2, we'd like to have 0.3, but really, we obtain 0.30000000000004. So, this class allow to be precize computing with pows of 10 and treating only integers. Then, the result for 0.1 + 0.2 is 0.3.

Tests

To verify results, tests are presents. For that, it's possible to launch pytest to check calcul.

Operations

Plus

• Decimal.plus(0.1, 0.2) => 0.3
• Decimal.plus(0.1, 0.02) => 0.12
• Decimal.plus(0.200, 0.02) => 0.22
• Decimal.plus(1, 2) => 3
• Decimal.plus(1, 0.2) => 1.2
• Decimal.plus(0.000005, 1) => 1.000005

Minus

• TestDecimal.Operation(5, 3) => 2
• TestDecimal.Operation(3, 4) => -1
• TestDecimal.Operation(3.5, 4) => -0.5
• TestDecimal.Operation(3.5, 0.05) => 3.45
• TestDecimal.Operation(1, 3) => -2
• TestDecimal.Operation(0.1, 0.3) => -0.2
• TestDecimal.Operation(0.1, 0.2) => -0.1
• TestDecimal.Operation(0.3, 0.2) => 0.1
• TestDecimal.Operation(0.8, 9) => -8.2

Times

• Decimal.times(2, 1.5) => 3
• Decimal.times(3, 4) => 12
• Decimal.times(3.5, 4) => 14
• Decimal.times(3.5, 0.05) => 0.175

Divide

• Decimal.divide(6, 1.5) => 4
• Decimal.divide(3, 4) => 0.75
• Decimal.divide(3.5, 4) => 0.875
• Decimal.divide(3.5, 0.05) => 70
• Decimal.divide(1, 3) => 0.3333333333333333
• Decimal.divide(0.1, 0.3) => 0.3333333333333333
• Decimal.divide(0.1, 0.2) => 0.5
• Decimal.divide(0.8, 9) => 0.08888888888888889

Modulo

• Decimal.modulo(6, 1.5) => 0
• Decimal.modulo(3, 2) => 1
• Decimal.modulo(9.5, 2) => 1.5