double varible hold some strange value

[rupesh.swami]

hi all,
i am new to iphone programming
i write following statement

double propertyTax;
propertyTax=[txtPropertyTax.text floatValue];

uitextField txtPropertyTax.text hold the value 1.63 but when i assign it to propertyTax variable then it convert to 1.1629999876022339. how can i resolve this type of conversion without changing data type of PropertyTax

[caveman_uk]

double and floatValue - spot the difference?

[rupesh.swami]

double and floatValue - spot the difference?

sir,
thank you very much

i am stupid so i can not notice this thing.