27 lines
596 B
Objective-C
27 lines
596 B
Objective-C
//
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// MPEvaluationContext.h
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// MathPad
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//
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// Created by Kim Wittenburg on 12.09.14.
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// Copyright (c) 2014 Kim Wittenburg. All rights reserved.
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//
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@class MPEvaluationContext;
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@interface MPEvaluationContext : NSObject
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+ (MPEvaluationContext *)sharedContext;
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- (void)push;
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- (void)pop;
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- (BOOL)defineVariable:(NSString *)variable
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value:(NSDecimalNumber *)value;
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- (BOOL)redefineVariable:(NSString *)variable
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value:(NSDecimalNumber *)value;
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- (void)undefineVariable:(NSString *)variable;
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- (NSDecimalNumber *)valueForVariable:(NSString *)variable;
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@end
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